https://bugs.kde.org/show_bug.cgi?id=472448
--- Comment #1 from Zenurik <alisson....@outlook.com> --- So I recently discovered what was causing this issue: When changing my screen resolution from 1366x768 to 720p, the issue was gone; every game was able to be fullscreened again. Apparently wayland doesn't work well with my laptop resolution for some reason. -- You are receiving this mail because: You are watching all bug changes.