They have been diminishing 3rd party launchers with various updates already. Multitasking gestures broke various things and didn’t work well with third party launchers - I think the animations still don’t work. The toolbar they added for foldables and tablets only works with the built in launcher. The last one sucks because Samsung made one for the Fold prior to that which was launcher agnostic (was better too imo).

That said, things are still pretty great and it’s one thing I hope they never kill off as it allows a crazy amount of customization and personalization. Without it, removed me might as well get an Apple (well maybe not).