Hello! I have an idea, there are ground level chairs sold as "ground level gaming chairs" but they are quite comfy. They look like the letter J that has been widened. There are no legs, you have a rocking motion since its a curved bottom. They also have the option for audio output - speaker or head phone jack which is nice. Hope you find what you're searching for!

Another option, depending on your vision, may be something like Max TV glasses. They are a type of magnifying glasses that you can wear that are basically binoculars for TV.

https://www.eschenbach.com/products/telescopes-galilean-maxtv.asp

Check with a low vision specialist in your area to see if they may be useful.

I can't help with chairs sorry, but I'm curious, why don't beanbags last that long? My nan had beanbags for the kids in our playroom and they lasted for a year or more.