On the other side you have devs who have AI in their head. They often use tools to optimise their flow. Ive always used resharper as a developer and think autocomplete is certainly a developer efficiency improver. 99% of the suggestions resharper makes, i checkin. Thats why i use it, it has less fuzz because it doesnt try to be everything.
Pressing alt+tab and scrolling through some search results isnt something that adds overhead to my flow - after 30yrs im pretty good filtering content.
I do alot of PoCs though, so if i wanted to write in a language i didnt understand, i think copilot can improve my flow somewhat to get me to serach terms that will benifit me quicker.
Overall im still a few years away from relying on AI to help me code. Its going to be great for retirement though, if i had a family and kids it would allow me to checkout of self-paced learning while still maintaining my edge.