thanks! and that's because the game wasnt meant to be played in full screen, but this is the only way a project made in this version of godot can run. you have to manually rescale the window to the size of the background and then everything works just fine
I ran into my Godot build not running at all, something to do with Macs, Godot 4 and web builds, long story short, I ported my game to an earlier version of the engine.
There is an option to turn on an "array buffer", in the itch's options for the game. that's what you gotta press for the later godot versions. unless it's something else specific to macs