To start off with I mostly use Proton through Steam though this issue affects the Heroic Launcher as well.
When playing some games using Proton after a few days Chromium based applications go wonky and then eventually don't open at all. This includes Steam trying to refresh the store page on a constant loop, Brave opening and then crashing immediately. Eventually I'm unable to launch anything Chromium based which has included Brave Browser, Discord, Steam, The Heroic Launcher, etc.
I was wondering if there are some caches I could clear or some way to reset whatever has messed things up. Restarting the computer does work.
Thank you so much for your time and help!