If you go to protondb.com and search for the game, there's a link under the title for "GitHub Issue Search". I suspect that's where you'll find the discussions.

If you go to protondb.com and search for the game, there's a link under the title for "GitHub Issue Search". I suspect that's where you'll find the discussions. Here's the issue for MCC. https://github.com/ValveSoftware/Proton/issues/2907 https://github.com/ValveSoftware/Proton/issues/2907