you've heard of lithobraking, now get ready for hydrobreaking
Jumuta
nvidia these days has little to no issues with games, I've personally had very little.
The biggest problem I've had is with video decode/encode acceleration, because nvidia doesn't provide vaapi drivers and Firefox doesn't enable vaapi by default. there is a solution that works but you need to do some tinkering.
this isn't a huge problem though, modern cpus are pretty fast and software decoding is fine for the most part
i mean it is called "post market os", and yeah hardware driver support isn't that good unless you get a community supported device. my one doesn't have camera, cellular, gps, etc.
Luckily my phone is pretty well supported out of the testing section though, so it has wifi and (partially broken) 3d acceleration
Mine is a budget phone so the performance is not optimal, but it's still fun to play around with.
I don't think the phones being old matter that much though, I haven't had too much performance issues (except my browser that doesn't have 3d acceleration working)
i think it's a pretty recent phone wrt the pmos standards