Thanks for all the feedback! Note taken about the physics and controls, they ended up being very jank and something I didn't notice because testing my game I got so used to the jank :p and heard about the collider as well. I wanted to make the player feel unwieldy and heavy on purpose bcs of the foreign body you're inhabiting which is why the gravity was turned up for so high, but it makes sense that it would make the precision platforming elements frustrating.
Idk if I'll return to this project anytime soon, but I'll keep all this in mind for if I decide to work on a platformer again. Thanks for checking out my game!