"Several windows, pop-ups and menus" = Literally one button.
If you concider it separately ...
Then yes, it may seem like one button ... but in practice it isnt:
In BG-3, when i concider my options ...
I look at my hotbar and i see all my favourite spells, all my favourite items ...
In Solasta, when i concider my options ...
If i want to see my spells i have to open spellcasting window ... if i want to see my items, i need to open item window ...
So i look at my hotbar and see nothing ... that frustrates me.
Also checking it alone is allready two unnecesary clicks ...
> Ergo: BG-3 is clearer for me.
Then i decide to cast a spell ... first i need to find it, and maybe that is bcs i spend so much time in BG-3, maybe its bcs their icons resonate with me so well, but i really concider BG-3 icons MUCH better compared to Solasta.
Also there is just that ugly fact that those spells are sorting by some key i dont really grab ... when i have seen spells in Solasta for the first time i didnt even notice that small space between spell levels, so i concidered whole row to be whole spellbook just thrown at you with "search silly" attitude ...
Now i know there are those spaces that separate particular spell levels, but still that huge bar full of things i would not need, since im going to cast only that single spell im searching for, feels owerwhelming.
In BG-3 i have spells sorted the way i want them ... if i wish to skip one (or more) positions on hotbar to separate them, i can.
Then i know that this is cantrip group, this is damaging group, this is CC group, this is healing group, and this is utility group.
This may once again be my compulsiveness, but that is how i work on my bar ... then, every single time im searching for spell i allready know where to look, bcs i have intention in mind.
And yes, it pisses me off beyond measure when Druid Wild Shape (or other shit) messes my hotbar ... the fact that you cant adjust hotbar of Lae'zel and Shadowheart in tutorial included. -_-
> Ergo: BG-3 is clearer for me.
And quite honestly ... concidering how little those buttons in Solasta do, i extremely dislike how INCREDIBLY HUGE they are. :-/
I mean just look how big part of screen takes Hotbar for itself ...
Once again, in BG-3 hotbar dont take so much space (or it didnt feel that way to me) but that can be caused by camera aswell.
Anyway if i put those UIs side by side ... i know its not true, but BG-3 hotbar feels like it takes half the space Solasta do. :-/
I dont really want to be too harsh about it ... but one must wonder if that isnt intentional, after all, Graphic really isnt Solasta strongest side. :P

Nah, just kidding.

> Anyway Ergo: BG-3 is clearer for me once again.
I most certainly hope so ...
That is something im asking for ... well, since my first post on this forum maybe.
