Over a year ago the Google Play started suggesting unused apps you might want to consider deleting from your phone. As with all things Google, you got that feature when you got that. I never received a notification for over a year. I promptly forgot this was a thing until today.
TL;DR – don’t delete all “unused apps” suggested by a Google Play notification without verifying they’re actually unused.
I woke up with a Google Play notification that it had found a bunch of unused apps, and there was an option to uninstall all of them. Being as I trust nothing these days I went through and found that the Goog had considered an app I used three days ago to be an unused app. An app that launches every time I connect to my WiFi was also returned as an unused app. Probably 15 apps I use monthly or so were listed as well.
Most of the 50+ apps were indeed unused, but plenty weren’t.
My guess is that most of these had not been launched through the launcher so maybe they didn’t register as being active, but whatever the case had I just selected mass deletion I’d be out a few apps I do use.