Pretty nice game, with a well crafted ambience! Some points I'll note since I played it through Godot :
When making WASD controls, please use the "Physical key" setting, it makes it so the key don't depend on the type of keyboard (I have a French keyboard, changing WASD into ZQSD).
I see you used portals, I'm quite impressed how well they work since they were made during a Jam, I tried it myself a while ago and couldn't get it to work properly.