IME, BG3 is really similar to good 5E TT play.
Getting hung up on specific TT mechanics usually isn't worth it, I mean much of TT game is played in narrative form where we hide mechanics behind IC descriptions. One of my friends refuses to divulge character sheet info, you have to guess it from in-game, and one of my buddies hates any immersion breaking talk about mechanics.
Some of the BG3 innovations seem pretty good; weapon maneuvres, no heavy armour strength requirement apart from encumbrance, Tiefling subraces etc... I don't trust WotC to get this right however, they're not the people they were in 2014.
