For one ... i dont need picture, i know exactly how that mess lookslike.

For two ... what exactly are you trying to acomplish here?
...Having a rational discussion? Rather than something based on vague feelings?
If you claim that you don't like something because it's "too complicated" you should at very least be able to point what's complicated about it.
Baldur's Gate 3 (NOW) has sub menus for spells as well, in case you missed it. Except they are way more messy (taking a separate tab for level, for a start) and come ON TOP of a generic "mixed bar" that is a bit of abomination.