Bro ! I created an account just to tell you how good your game is ! I have been playing this game for maybe only 5 minutes but i can feel it. This is really the type of game i would like to play or create ! The controls are fluids and the feedback are just great. The cherry on top to control a very agile character.
I am very surprised when you say that this game is in early development because this is already so polished ! For example the fact that the resonance of the music change when you go under water, the really beautiful animations of the characters of the fact that the tutorial indication changes directly depending on whether you press the keyboard or a button on the controller, etc.
I can feel this Hollow Knight inspiration in the gameplay mechacnics. Especially in the wall jump and the downward attack when you're in the air. So what I might advise you to do is to add a bounce when you do this. Like in Hollow Knight actually. It would make the character more agile. Unless it's intentional and serves your vision of your game. Which I totally respect.
I am not very good at criticing games but let me tell you that if one day you finish it i will certainly play it.
Keep up the great work !
(PS : sorry for my english if i made ant mistakes lol)