Which is to say... I think that if you disliked D:OS2, you probably aren't going to like BG3. Game studios tend to have formulas that they follow.
I'm not at all convinced studios have some "formula" that they keep repeating for years and years across different game IPs. Obsidian is a great example of a studio creating a very diverse range of games that don't have any formulaic carryover from one IP to another. And I'd say the same is true of Bethesda, Bioware, and CDPR (love the Witcher games but don't care for CP2077). Being a one-trick pony is a distinctly Larian thing. Most RPG studios have different development teams working on different IPs. Larian has just one development team that works on all their games. I'm sure they see that as a strength. I feel very strongly that is a huge weakness in Larian as an RPG studio.