Thanks, I’ll give 12.2 beta a go to see if it helps

I have to say that I can see some improvement with 12.2 beta. However after a day of use I did just get the dreaded notification again followed by couple of apps crashing. But for a day I have to say that the machine was way more stable than before, so some improvements have been made but it's not fully resolved the issue for me at least.

I share your frustration. Had this issue with 12.0.1, 12.1 and 12.2 beta. My machine is with an intel chip so has nothing to do with the chip & apps. I gave up and went back to Big Sur which is working fine with no issues. I would suggest downgrading for now, this will be fixed in a future release I’d like to believe.

Interesting, did you format the main partition or the MacOS Base System partition (recovery) as well? I've done a clean install already twice by formatting, removing and re-creating the main partition and problem always came back

Interesting, well as I said this error is more of a symptom I think. I'm pretty sure my problem was the RAM, I actually took this to a store and replaced the motherboard more than a month ago. Everything is running smoothly after that without any problems and the mac is completely stable again. But there may be other hardware related causes, like faulty SSD or any of the other circuits ... who knows :)