"You are just showing me that you don't have any clues about game development, when a game is released to public, very little will change. We call that fine tuning. Don't expect major things to change. Some adjustments here and there but the core of the game will remain identical."
My experience from DOS:2 EA to the finished version of DOS:2 was very different from what you stated. I played DOS2 EA the first week it came out - and then about a year or so after it felt like a completely different game. From DOS2 to DOS2 Definitive edition would fit into what you stated.
A little research about what was the vision was for Baldurs Gate 3 and then familiarizing yourself with DND5E ruleset would probably have saved you the frustration you feel over the game at this point in time.