As someone who doesn't like Larian's ideas of balancing I'm not a fan of the tadpole powers (which sounds like another heavy handed attempt to have the evil edgelord playthrough that Larian is currently putting on the center stage) nor of the build-defining gear. 5e is about playing your character and its class(es) and not min-maxing your gear as its not in its design philosophy as Drath Malorn pointed out.
At this moment i've pretty much given up upon BG3 feeling like a 5e game, best case it will be a 5e on steroids - which might be fine if they surprise me and manage to have a balanced game (which I've not seen it in the EA). I also hope playing the game will feel a lot different than what Larian put a focus on in their presentations - which to be fair could be if the game is really as reactive as they constantly claim.