Other issues like mechanics, you just do the best with what you have, since you will never please everyone. Personally, if I think something is silly, and I don't have to use it, I will ignore it in favour of my idea of role-playing the character. I may suggest modifications or alternative if I think it worthwhile, but there is no real chance that Larian can make the 100s of different versions of the mechanics that might satisfy everyone, so I never have an expectation of changes.
Personally I think BG 3 has the potential to become a great RPG. Strangely enough the aspect of BG3 I like the least is the user interface. I'm also playing Solasta using the DnD 5e rules too.
Solasta makes it easier for the player to pick spells, select actions and so on. I hope Larian Studios get some hints about how to improve the UI without directly copying what Solasta does. E. g. spell selection in Solasta is easier in Solasta compared to BG 3. Cluttering the hotbars in BG3 with spells and then having to move them when you get new spells is not fun. It was the same issue with DOS 1+2 as well.