Moving to Plasma 6 and switching to use native KDE panel vs Latte-Dock, I do miss much of the features of it as well. It’s all the little things you don’t realize until they’re gone.
I’d requested much the same porting/reproducing animations and such eventually to Plasma 6 as well here. Even as a low priority it would be nice to see like-features at some point, where ideally effort put into Latte-Dock isn’t lost entirely.