I believe we can all agree that the action bars in the game could use some improvements. Although they have come a long way since the beta launch, they still appear cluttered and could be more intuitive. However, I have a suggestion that could easily enhance the system, and I wouldn't be surprised if Larian had already implemented it for the final version.
At the bottom of the action bar, we have the option to switch between the Main, Common, Class, Item, Passives, and Custom bars. Meanwhile, the top tabs display all available actions, bonus actions, class actions, spell slot levels, and cantrips. However, clicking on any of these tabs shows all available options rather than filtering them based on the selected action bar.
For instance, if I choose the Class action bar and click on the Bonus Action tab, I expect to see only the available bonus actions for that specific class. Instead, the tab shows all bonus actions, as if the Main action bar were selected.
I think that addressing this issue would be a step in the right direction, even if it might not be the best way to tidy up the visuals. Implementing this suggestion would be simple, and it would enhance the user experience significantly.
