The damage from falls is fine. The ease to shove anyone long distances is not.
In 5e, shove consumes an attack. It is not a bonus action. It can't be freely spammed like in BG3, for a good reason.
In 5e, it pushes the target 5 feet. Not send them flying vertically like it does in BG3. Again, for a good reason.
Not sure how the Athletics vs. Athletics/Acrobatics contest is handled. That's probably accurate.
