I am not asking, just poorly making a point through these questions, that UI in BG3 is not a mess anymore. It used to be much worse and it has some positive dynamics to its development.
The UI in BG3 can still very much be considered a mess. The fact that it is improved over Patch 1's UI or that it has "some positive dynamics" doesn't mean it's not a mess.
Imo, the UI in BG3 has a long way to go before I will consider it to have crossed the line into being "good." And most of that work will be
removing the hotbar aspects of it, replacing individual-action-icons with permanent icons/buttons on the screen that represent a category of actions. E.g., that of Solasta or suggested as "Hotbar" #3 in
that"Hotbar 2.0" thread.
A fully customizable hotbar, where the only on-screen way to use actions is through that hotbar where each icon represents a single ability, is simply too unorganized and busy. At low levels, with only ~10 known spells and few class/race abilities, it is okay at best. But at higher levels, with 20+ known spells, many class abilities, and probably a full satchel of powerful item-actions, the constant hassle of moving around icons, searching through hotbar tabs, and the disappearance and reappearance of icons as you swap out spells or use items will be exhausting.