My experience with screen-readers on a PC is limited to NVDA on Windows and Orca on Linux, and I've used VoiceOver on MacOS a lot longer than I've used the other two screen-readers since I'm primarily a Mac user.

In an ideal world where every application is built with accessibility in mind, I think that VoiceOver on MacOS wins, however that's not the world we live in, as even Apple neglects accessibility on MacOS, leading to a worse experience browsing the web and interacting with built-in applications like the Terminal. VoiceOver is also built under the assumption that it is the responsibility of apps to adapt to the screen-reader so it provides very little in terms of scripting options. You can script VoiceOver using AppleScript or JavaScript, but since Apple removed the ability to script system events at some point, the ability to script VoiceOver is quite limited compared to NVDA's or Orca's. Therefore although I'm a Mac user and I do find VoiceOver to be more consistent and beginner friendly, I think that the experience provided by both NVDA and Orca is superior.

I must also alert you to the fact that navigating using VoiceOver on MacOS is a bit different from navigating on iOS. The reason is because user interfaces on MacOS are a lot more complex, so the navigation is hierarchical rather than flat like the default on iOS. In theory this makes navigating easier, but again in practice the hierarchy doesn't always make sense so you end up having to search a lot until you become familiar with the user interface of each application and start marking important elements as hotspots.

One last thing to keep in mind is that, from my experience, Apple doesn't give a crap about accessibility bug reports, whereas NVDA developers are very quick to address problems.. Caret web browsing on MacOS has been broken at least since I started using VoiceOver 8 years ago, sometimes when you use the arrow keys a lot to navigate text one of them seems to get stuck, and there's a bug in most American English speech synthesizers that for some reason makes them spell out the first 30 characters of any word longer than that.

So, to answer your question, VoiceOver is more consistent and beginner friendly, but in my opinion you you should aim at using what's best rather than what's easiest, because while the experience of learning how to navigate Windows or a Gnome desktop on Linux might seem daunting at first, it will pay off in the long run..

As for why I use MacOS primarily, that is because nothing else competes with the integration provided by the Apple ecosystem.

I've been a power user for both Mac and Windows since I was a kid, and I strongly prefer the Mac for everything I do. Building and testing websites, programming in Python, writing, managing media, music and video production, I'm just completely used to the flow of MacOS and figuring out and learning VoiceOver on it was easy for me after having lost my vision. It's always personal preference based on what you are trying to do, and MacOS VoiceOver is definitely a different beast altogether from iOS, but there are enough similarities that it's fairly easy to pick it up, even down to using the touchpad of a laptop exactly as you would touch and use the rotor on your iPhone and navigate the interface.

I was taught both Jaws and NVDA for Windows 7 and 10, and I just personally don't find them to be nearly as fast or as intuitive for what I'm used to doing over on the Mac side of my computer. If you want to get into audio production, though, you'll find much more support in the Mac community overall in terms of editing, mastering, sampling, and recording.

I fell into the exact same trap, so I’ll say this. Voiceover for Mac is nothing like voiceover for iOS. Apple gives it nowhere near as much attention. It’s so frustrating that I recently wrote to Tim Cook about it. It works, but you’re going to be screaming obscenities along the way. Unless you’re doing content creation, I cannot in good faith recommend a Mac

As well as personal preference there are some other things to consider:
Do you want to use specific software?
Cost
If you work - what do they provide?

I have NVDA on my personal laptop. Everywhere I’ve worked has issued windows as standard- and I use Zoomtext on these as the accessibility of some software is poor

It is all perspective and personal preference. No one can decide this for you. I am a mac user and apple all the way. More blind people use windows for sure. Or as you call it a PC. I use a mac personally and love it. The keystrokes are simpler on windows but they are both different. For macs you use a lot of keystrokes and shortcuts and different ways to navigate things. All of it really comes down to personal preference.

I would say get a PC because it's better accessibility. Mac OS has a lot of issues for voiceover.

Personally, I prefer PC (with JAWS or NVDA). I used a Mac when I lost my vision until halfway through 2021 and it was a clunky, buggy mess (in my opinion). For me, it took longer to do what I needed to do with VoiceOver. I switched to PC and it was like a breath of fresh air.

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I will say, however, if you're low vision, I really liked using Mac and its magnifier. I used Mac from 2010-2019 as a low vision user. However, I also like the different colour mouse options that Windows provides.

Overall, I think PC’s are much more accessible.

I will be straight up honest that I am a bit bias. I prefer mac 100%.

That being said, I have limited experience with Windows, but I know there are other forms of screen readers available for Windows that are not available for Mac, like NVDA (as well as the built-in Narrator). I've only used NVDA and Narrator and they both seemed a too confusing to me. So I tend to stick with Mac.

I find Voiceover on Mac to be easier, more customizable, and the voices are much better. Mac computers in general seem to be easier to use, crash less, the computers last much longer (my first lasted 7 years), and run faster.

I am totally blind, and I also teach assistive technology to other blind and low vision people. I am versed in both windows Mac android. If you’re interested in getting a MacBook I would recommend that you do the following.
If you have an iOS device or an iPad, go into settings, then to accessibility, then down to keyboard. Once you were there enable full keyboard access for your iOS device. The other thing that you will need to do this is an external Bluetooth keyboard. This method will allow you to use your iOS device as if it were a Mac. This way you can get some practice in learning the hot keys in the keyboard commands.
One other thing to the mystify the computers a little bit almost all computers use the same functionality. Alt F4 on windows will close a program CMD +4 on a Mac does the same thing the keys are in the same position. CMD plus tab will allow you to skip around on a Mac. Whereas alt and tab will switch you to your different programs on a Windows computer. It is the same thing once you enable to full keyboard access on iOS devices it has a list of all of the keyboard commands. These are the same commands that are used on a MacBook. So essentially you could turn your iOS device into a knock off Mac computer.
Here are the steps from Apple on how to do the full keyboard access.

https://support.apple.com/guide/iphone/keyboards-ipha7c3927eb/ios
I hope this helps you out a little bit.

Depends what you want to use it for. For example, If it's music editing, Macs have some nice softwares. If it's anything else, I think that windows will do it with less headake.

I am hevyly tilted towards Windows, simply because compaired to voiceover, NVDA is way simple to use, way more intuitive. But as others said, everyone has their own preference.

Macs have some nice bells and wissles, sexy voices, earcons, some nice applications.

Windows isn't perfect either. Applications are inaccessible sometimes, but there are ways to deal with. The number of diversity on windows systems, I mean, if 1 app doesn't work, you have bunch of them to replace them. Most of them are free, unlike Mac which itself is damn expencive. Besides, not everything is rosy on Macs. Their voiceover had suffered allot with their browser, Safari. It doesn't have strait up navigation, like Windows based screen readers. Besides, you can't really add more significant functionality to voiceover. For NVDA, it's open source. So not only there are hundreds of addons to make it work nicely, but if you don't like something, if you have the programming knowhow, you can program NVDA to work the way you want.

Besides, if you are in to programming, windows has so many options,Hell, it can run linux inside windows. Some of the audio games as well, they run on only Windows systems, as far as I know.

You know what, you should buy a Mac for few days, try if it works for ya, if it doesn't, within 14 days, you can return it. Buy a windows laptop then. But, also, check the apple store policy before buying, think that 14 day rule is not available in every country.

I'll give this to Apple, they make damn sexy laptops! Wish if I could put Windows on one of the latest MacBooks.