Originally Posted by T2aV
The game doesn’t need to fit your idea of 5th edition. Dos with 5th edition flavour. What is exactly wrong with that? Nothing. DoS series sold very well And is an award winning formula, combined with 5th edition flavour, is a winning strategy.


What is wrong with that?

Quote
From the creators of Divinity: Original Sin 2 comes a next-generation RPG, set in the world of Dungeons and Dragons.

(snip) based on the D&D 5e ruleset.

Baldur's Gate 3 Steam Page


Larian was contracted by the WotC to created a game based on the 5e ruleset. They have promoted the game as based on the 5e ruleset. They have sold copies of the game based on their claims that they're following the 5e ruleset.

Right now this is a hodgepodge of incompatible rules and systems created with two completely different gameplay balances in mind.