fwiw, I have a 12th Gen running Nix and I don't have any of these problems (well the brightness keys don't work but at least the sound/volume keys do - this is probably a DE issue).

Sleep/resume work, but I haven't tried to get hibernate working. I don't use the fingerprint reader. And I am connected pretty much full time to power (I did set the max charge to 60% in the bios) so battery life is not such a deal breaker for me

I DID see the stuttering/laggy issue in X11 but the fix I found for that worked like a charm (note I only saw this issue after a few days of playing/switching DEs). Currently running Cinnamon but also tried Plasma and Pantheon.

I do wish the palm rejection was better on the touch pad. I have lazy fingers/thumbs that hover over the touch pad and I get a ton of spurious clicks which is driving me crazy.