Neither? I'm surprised nobody has said it yet. I turned off AI autocomplete, and sometimes use the chat to debug or generate simple code but only when I prompt it to. Continuous autocomplete is just annoying and slows me down.
I had turned autocomplete off as well. Way too many times it was just plain wrong and distracting. I'd like it to be turned on for method documentation only, though, where it worked well once the method was completed, but so far I wasn't able to customize it this way.