Since everyone (everyone important, at least!) wants Jump, and there are issues with the server, why not add Client side jumping for now?

If Jumping is cosmetic only, as in it doesn't give you access to new areas, why not let us jump and see it only on our computer for now.

This does 2 things:
Lets us feel like we're playing a game with jump

Doesn't let other players see jump spamming


As time goes on, and the server improves, then add it to the servers as well. The same way /display mh worked in 1.18 initially.
It's definitely lame to have your character stuck on the ground