Glad it’s working! Thanks for the follow-up, for anyone who runs into the same issue in the future.

This won’t help you recover during a freeze or crash, but it may help find the cause…maybe.

Try running Steam from a terminal, and see if the game gives any output when crashing. I’d put the game in window mode so I can see the terminal and the game at the same time, in-case you lose control over the system. See if the terminal shows any errors.

Usually, when my computer starts to freeze up, it’s because the disk IO is saturated. I moved my Steam library to a different drive than my OS, and that hasn’t happened since. The interface really shouldn’t freeze just because the drive is busy, but that’s what I did to fix it. Don’t know if it’s a GNOME 3 problem, a Fedora problem, or something else.

Holy shit. You just reminded me that I used to be one of the people documenting and updating the wiki for MyPaint. You’re 100% right.

Maybe I should try doing something like that again, start small and use the process of the documentation to help me learn and engrain stuff rather than flailing around trying to implement it from scratch.

Huh. I like this idea.