+1
BG3 needs to do away with the hotbar as the basic unit of UI. Larian moved in the correct direction with the basic action buttons on the left half of the UI, but need to do much more.
A hotbar should be the place where I can optionally put abilities/spells that I use often, but by default I should always be able to access these things through elements baked into the UI. E.g.: click the always present "spells" button -> pop-up/slider showing all the spells I know at level X -> flip through pages for different levels of spells -> select spell to use and/or add to hotbar.
For using multiple abilities in the same attack, Larian could make those abilities (e.g., Smite, Maneuvers, Sneak Attack) toggles instead of buttons. You toggle on everything you want to apply to the attack, and the game automatically checks to see if those things are compatible. If not, the conflicting ability(s) is toggled off. When you attack, the appropriate effects are applied and resources are used.
