can you make it possible to chain the swingy vine thing so you can get up really high? But maybe fall damage can cancel it out?
It's already chainable, if you use it and use it again it'll work. You just need to see if you have 2 cooldowns available.
is it infinitely chainable? like the acorn hop in Mario Odyssey speedruns?
As long as you make a Cooldown focused build you can chain it more and more. But infinitely chainable would probably be an exploit, like in Mario. We wouldn't want that.