The irony here, for me, is that after 2 years of not needing windows at all, even for gaming, I've had to tuck my tail and return to windows to play Apex. It's been solid for 2 years, but about 2 months ago I started getting weird file validation errors. A patch seemed to fix it, but then last week its come roaring back and its unplayable. I've tried all the tricks, validating game files (always finds files that need to be redownloaded), clearing game cache, completely uninstalled, trying the flatpak version vs deb, etc etc.
The most irritating thing for me is that I dont have a clue who to report this too or what kind of information I can provide. I was using inotify tools to see what was happening to the files that corrupted them, but there is nothing I can see. It appears as though the corruption happens when steam is accessing the files (but there is no obvious writes happening, its all reads as far as I can tell. But who do I file a bug with? the proton devs? Apex devs? Steam devs? PopOS devs? Steam support will tell me to pound sand.