the cursor locking still happens in a handful of games for me - most work perfectly fine but sometimes i do end up running something with gamescope with the --force-grab-cursor argument to fix it.

this is when running games with either steam or wine/bottles/lutris.

strange that it happens in virualbox, i would think it “virtualizing” an entire display would fix issues like that. does virtualbox itself “grab” the cursor, or allow it to go off the screen by default? sorry i don’t really know virtualbox, never used it much