choosing hardware: pixel fold or pixel tablet - eviltoast

I currently use a Pixel 7 Pro with GrapheneOS and I really enjoy the experience. I have a Surface Pro 7+ with Linux on it that I use from the couch. It’s a bit bulky and I’ve found myself gravitating more to the Android UI anyhow. I’m looking into either getting the Pixel Fold or the Pixel Tablet, both of which are supported by GrapheneOS.

The bulk of my usage would be mobile games (including emulation through Lemuroid), books and magazines through Libby/Librera, and the occasional video content. I’d like to bring it with me on the go.

I was initially going to get a tablet and dock but the fold looked interesting. My reservations about the fold are the internal screen life and how apps behave on the internal screens. Surely being a moving part is going to decrease its lifespan, plus screen protectors and cases seem like they would be difficult. Are there cases for those phones? I always put a screen protector and case on my devices. How do apps behave in full screen on the fold? Do they have black bars if it’s not big enough or does it get stuck to one side?

Thanks!