This is exactly opposite of my experience with BG3. I played it twice (good sorcerer and evil Dark Urge) and made completely different choices and I felt like playing different games. You may have a different view on this, sure, but it doesn't mean it's a reality.
There are things I don't like in how the story goes or things that feels unfinished or cut, but the feeling of meaningful choice is on of stronger points of BG3.
I don't want to say simple "please, play the game first", because I formed opinion on games I haven't played myself too, and there is nothing wrong with that, but it's... really not how you described with BG3, at least to me. In fact, playing BG3 made me put more attention of lack of meaningful choices in each crpg I played after BG3.
Like, Rogue Trader is a game with truly stellar writing (really, something I haven't seen since Disco Elysium), but the choices mainly comes down to following one of three paths (dogmatic, heretical or iconoplast). There is no sense of "role playing" your character the way you can do in BG3.
My experience with BG3 was that in playing it, the only time the game feels different is if you try and play different alignments. To mere hallmark of good roleplay in a game is how wll you can play the same morality and sill feel like a different character. I have started several runs of BG3 and my characters quickly feel the same, and I feel like I lack a lot of choices I'd want my character to say. I have not felt like that at any point jn my two rogue trader playhroughs. I feel in BG3 like if I want to play a good character I'm gonna see pretty much the same things. But even as I was playing he heretic path in rogue trader I could see other interesting ways I could roleplay a heretic. Honestly I found BG3 very disappointing as a roleplay experience, and I've felt that way since early access.
