Basically the 3D/CGI content Swagnar talks about is pretty evolved by now that it looks incredibly realistic, especially by the more talented creators for the more popular games such as Overwatch, Cyberpunk, Witcher 3, Mortal Kombat, Tomb Raider and basically any game that has a female character/protagonist. The community revolving around it is massive.
And games like Cyberpunk have shown how officially it can be done incredibly realistic and proper. But regardless of such animations, I do not doubt in Larian's capability since it's Early Access and optimization is not really their priority right now. Which is evident by so many wonky animations such as facial emotions, movement and other aspects.
For example like this one below. This is an animation error where our character looks sideways. And there's far far worse examples than this by them looking stiff, constipated and so on.
But then you have an incredibly high quality representation of what they're capable, such as with musical instruments where animations are incredibly fluid.
So I am not too worried about animation quality, as the optimization hasn't even started yet, but I have a feeling judging by the ones showcased above that this shouldn't be something to worry about.