There is a mod on Nexusmods for BG 3 called DnD Rebalancing.

Features of DnD Rebalancing
Here you find a list of the features so far.

What I especially like is that Disengange, Jump and Shove got fixed, as well as the automatically failed Concentration checks when going prone.

I am now very curious how the complete Patch 4 notes read, and if the author of the mod will release a new version to work with patch 4.

But as it is now, I really enjoy the mod and it gives BG 3 a much better feel in combats. Sadly the Height Advantage/Disadvantage stuff is not covered by the mod, but lets see what the future will bring.

I just want to add, that I am not affiliated with the author of the mod in any way. But I sure hope many people will try the mod, if only to better give focused feedback on controversial mechanics currently in the game.