Yeah, that's Larian combat for you. Once you figure out the most optimal openers and actions, you just repeat it until the end of the game.
It worked on DOS2 and it is the same here so far. Just look at sin tee on YouTube.
He does solo runs with every class, but IT ALWAYS leads back to him using the same items and same strategy matter the class and it works.
The combat design isn't particularly challenging at all. That's why I'm so surprised people have issues beating the Githyanki patrol without cheesing or pre-positioning.
It's honestly so formulaic and only complicated by the fact they have a lot of HP and have multi-attack.