FSR4 has been great for me. Performance seems slightly worse than FSR3 but the increase in visual quality is well worth it, particularly because IMO FSR4 on balanced both looks and performs better than FSR3 on quality.

I still avoid it when I can because native rendering will always look best, but this is definitely really nice for steam deck where the hardware is much more limited.

Obviously this is subjective, but I use android auto all the time and something similar for a linux phone would be really nice for me. Don’t dismiss them just cause you wouldn’t use them