oddtail, OK, this is my last Hail Mary to try and use Godot.
I tried to install Visual Scripting as a module, because that's the only way I'll ever be able to work in Godot ( https://github.com/godotengine/godot-visual-script/tree/main ).
I didn't know how to install a module, so I followed the instruction here, i.e. copied the files to a /modules folder in the main Godot folder ( https://docs.godotengine.org/en/stable/contributing/development/core_and_modules/custom_modules_in_cpp.html ).
It didn't seem to have done anything. I don't know what I'm supposed to do.
I asked in the Godot Discord channel, but nobody answered me so far, and since other questions have been answered since, I doubt they will.