Simple active user count doesn't really reflect "the truth" either. Take myself - I count as an active user, but since the lockdowns started, I've gone from using FB daily to barely using it weekly. I ignore my feed completely and only check FB for photos from my parents and some niche marketplace groups. Anecdotally, I know quite a few people whose usage pattern has followed a similar path. I'm sure FB can still monetize me, but not nearly as well as 18 months ago.