Thanks for trying to support my rubbish laptop, but the html version doesn't work for me either - the game runs but the screen is all magenta with "find the red gate" at the top. The music plays and I get sound on clicking/moving. I've just tried a web build of a 3D godot project of my own and none of the meshes in that are displayed, leaving just the skybox, so it looks like the problem is my end.
The low-spec desktop windows build you released seems to be identical to the higher-spec one - the "last modified" dates/times are identical (and well before itch says you uploaded the low-spec version). Is it possible you accidentally uploaded the same one twice? Sorry to pester you with this, and if it's too much hassle for you to sort anything more out, I get that - this is just a free jam game after all. But between the art style and "If I said anything about it it would spoil the experience", you have me intrigued.