DoS combat with a D&D coat of paint would've been so much better.
The D&D ruleset sucks for videogames. It's made for tabletop, there's no reason to think it would work well in videogames, and it doesn't. The resource management just feels unnecessarily restrictive, dicerolls in dialogue ruin immersion and defeat the whole concept of role-playing.
I like this game, but it's much worse for being stuck with an antiquated ruleset who's only contribution is tedium.
The D&D system actually works great for video games. The problem is that Larian didn't use it. They cherry picked pieces of it. BG3 isn't a D&D game. It's a game inspired by D&D, and there's a difference. Solasta is a D&D game that uses the 5e ruleset and uses it well.