Ok, I made some research and looks like this is fairly common, but it's most likely not an issue with PPUX itself. I got a couple questions:
- Does it happen in normal windowed mode, or only after going fullscreen (Ctrl+F)?
- Does it happen when you click another monitor, Alt+Tab, or when an overlay pops up (Discord, GeForce Experience, Xbox Game Bar, etc.)?
PPUX already runs with vsync off in its own config, so if it still minimizes, it's usually driver/fullscreen/overlay related rather than an app issue.
Edit: check this too.