Most games would be be better without a minimap. Period.
BG3 is in no way an exception to the rule.
Most games offers option to turn minimap off, wich is even better ...
Most of these games with "the option" are still designed to make their minimap, markers and omniscient GPS trackers an absolutely essential part of the gaming experience, otherwise the player is simply not offered enough tools and information to comfortably deal with quests and content.
Which is PRECISELY why games that are designed from the get go to do without a minimap work so much better in terms of making their stuff organic to discover and enjoy.
