Finally had the chance to play a bit more of this.
Mechanically/gameplay wise, I think this is the most fun I've had with a platformer since I played Celeste.
I'm a bit stuck with the story at the moment. I got the floppy disk, installed it on the computer with the Whack-A-Keyboard easter egg, only to find that it was not an easter egg and instead a core part of the game (which was mind-blowing, by the way). I decoded the message under controls, and interacted with Molegan, but I don't really know what to do now (something to do with L or "Look"). I'm sure I'll figure it out eventually.
I only have two (minor) suggestions, first it would be nice if the levels had their tag/number displayed in the map, since navigation gets a bit complicated after several levels have been unlocked. Second, I wish the death animation/respawn time was faster. One of this game's biggest strengths, and the reason it's my favourite platformer since Celeste, is how much fun it is to just experiment with the movement set and attempt risky maneuvers for the sake of speed. However, this process inevitably involves substantial amounts of failure, but if respawning was near instant that would make failure fun rather than an annoying gap in gameplay.
And sorry to hear about the whole Unity fiasco. I hope it doesn't affect you too much.