First this issue is beyond my level of knowledge so these questions are as much for my own education as there are for you.
Is there anything in journalctl logs? Is there even any indication in journalctl logs that the system freezes? Or more likely it’s desktop that freezes? ( That’s a question not a statement.)
@mandian suggests to run this: You may take a look to journalctl -kax log too, especially to red lines.
I know we have Xorg.0.log on Intel systems like mine does nvidia driver produce similar logs?
Show all of:
as an attachment
Regarding whether it is system or desktop that freezes can you do anything in VT? That would be a prime time to get logs on this if that is doable.
Is more or less likely to occur in LXQt or Plasma5 or other desktop if you have. Another one to check this would be ICEWM (the REAL light weight desktop) which is just a few packages to install and good to have as a backup desktop IMO. (urpmi icewm will install.)
Basically I’m looking or asking for ways for user to narrow down problem causing a freeze to whether it is caused by desktop, graphic driver or other graphic issue, window manager, or whatever else could cause a desktop or system to freeze.