I'm using Wayland/XWayland, but never experienced this issue in full screen mode.
Sometimes (first once a day, now very rarely) the whole desktop crashes, caused by an invalid X window handle according to the logs. Luckily this never happened while running Mixxx in full screen mode.
The behavior might also depend on the actual graphics driver, Intel HD Graphics 530 in my case.
I'm using Wayland/XWayland, but never experienced this issue in full screen mode.
Sometimes (first once a day, now very rarely) the whole desktop crashes, caused by an invalid X window handle according to the logs. Luckily this never happened while running Mixxx in full screen mode.
The behavior might also depend on the actual graphics driver, Intel HD Graphics 530 in my case.