When EA first launched there were a lot of hard core Baldur's gate fans on the forums. If you are one of those then no, you will not like this game. Just like most of the hard core Baldur's gate fans that were here.
Truthfully you probably are the only one can answer this question since its about you.
It's true that there were a number of fans of the first two games active on the forums in early access who decided that BG3 wasn't for them, and therefore understandably moved on. But there are also plenty of fans of the old games, myself included, who did enjoy BG3 and so stuck around. Whether the OP would turn out to be one of the fans of the old games who doesn't like BG3, or one who does, as you say only they can tell, and possibly only if they play the game.
I do think there's an extent to which we should trust our instincts, though, and if the game isn't grabbing someone after they've watched streaming and they've not enjoyed playing games with similar mechanics before, there's unfortunately a decent possibility that they won't get along with BG3. Given a love of the old games, if I were them I'd probably still buy the game on sale and give it a go to see if it could win them over. But then I was blown away by the first look at the game and bought it on the first day of early access, so I'm clearly not in the same position
