It seems like it could be a thing if you expand and tweak it to be a harder platformer or add enemies or a timer or something, and give it a little polish.
It can git jittery if you're standing on the cling-on and are off to a side, and that should be ironed out. Might also be funner if the cling-on sinks slowly while you're standing on it to keep things from being too still, unless you want to go down a puzzle game route and make it so the player gets stuck and needs to reset if they move it too high and get stuck on a level. If you want the main challenge to be platforming, then maybe don't make it possible to float horizontally by standing on it and moving a little to the side, which would both fix that jitteriness and make it so you can't just float horizontally. Otherwise, it would need some other form of challenge because being able to float horizontally and always able to move up makes it super easy.
& wth, you made it in Godot and in the software credits listed Unity?