@drillepind42@feddit.dk Is this on an old thinkpad or older intel processor? I once had an issue like this that turned out to be the processor not entering one of the cstates properly, the fix was disabling the cstate reponsible, I cant remember how to do this now, it involved editing a text file, but after this there were no problems
It was really difficult to debug because it would hard crash with nothing suspicious in the logs. I think it was a random hardware bug as it would occasionally happen in windows also. Try disabling idle states completely to see if that is the cause.
Go low tech, use libreoffice or something to make some card layouts, populate the fields from the CSV with a mail merge, print them and pin them to a wall.
This probably avoids an IT call because you should have these things already available.