The cinematic approach to Dialogue in BG3 makes a non voice MC feel out of place and really creates an uncanny valley as conversations do not flow with only one side speaking. There are pros and cons to a voiced protagonist, I am not going to pretend that having one comes at no cost, they do. I will say that given the direction they took dialogue and given the results I have seen it is jarring.
I want to end dialogues faster because they are so uncanny. In comparison either fully voiced or totally unvoiced options work well, each have their advantages and disadvantages. I love dialogue intensive RPGs but this is very jarring. The only worse system I encountered was Pillars of Eternity where you would have the first few lines of a conversation voiced and then stop. And it was never consistent so it wasn't like the first paragraph was always voiced so you automatically knew to start reading from the 2nd paragraph. Oh no it varied from one conversation to the next, so I always found I had to read the very sentences I just listen too. It was so annoying I gave up playing. I could have turned off voice (If I recall correctly I had the option) but it so annoyed me and as I recalled that turned off the combat VOs as well. I just got frustrated and moved on to a different game. POE literally killed my enjoyment of the entire series because of that one design choice.