On this point, of course, there’s the question of whether it should use a bonus action, or whether jump should just consume movement speed. I think I’ve seen folk say that the latter is per 5e?
I am pretty sure jump in 5e jumping doesn't extend ones movement range. In BG3 one can go pretty high vertiacally as well, making it a worthwhile bonus action investment to get to a high ground. WIth "jump" spell, if jump consumed movement only, it would be almost indistinguishable from flight.
