Update: my air is still flawless. I have reduced night mode from 70% to 50% always, I went back to standard display zoom instead of large and i am using a full iOS glass UI which i like…. maybe i am of the few in here. Auto brightness also on and of course 120fps.
So in a nutshell my settings are now much more simplified:
PWM on/True Tone on/Reduce motion On/Night Shift 50%/2dots larger text.