[makeitdouble]

As sister comments are pointing out, it's a pretty common thing ("zoom fatigue")

Personally the best improvement was closing the camera feed, and that has been my team's experience as well.

There will be extremely few meetings (mainly HR and meetings with external vendors) where we set the camera, and even for those you can do the opening and presentation with camera on, and just shut it after that for the meat of the discussion.

The biggest part is we're presenting documents and slides either way, so seeing the person's face somewhere just doesn't help. In particular we want to check the meeting transcript realtime to be sure it matches what we're talking about. Overall I've seen no downsides doing it since the pandemic, and don't see going back to camera on meetings by default.