I have mixed feelings about soliciting feedback for released games in jams, but you're clearly putting forth a really good faith effort to give other people feedback too. I have thoughts on how to improve the animation of the cube and stuff but from your devlog it sounds like do too :P Actually I don't think it's nearly as bad as your devlog makes it sound like. It's clean and aesthetically pleasing, by and large. A lot of the transitions, especially going from one level to the next, or dying and respawning, easily take like 2-300% more time than they should imo. Some bugs I noticed, too, like it aggressively trying to convince me to restart when I was seconds from completing level 10 (i accidentally lost the screenshot as itch didn't like me posting it for some reason, can recreate it reliably if you want help bug squashing)
I got stumped on level 18, would be cool to see a full playthrough at some point. I think I might've been taking the wrong approach to a lot of the puzzles! Congratulations on finishing a game, though, that is a huge achievement ๐ฅณ