In our district phones are banned during the day. Most students don't care about their phones, what they care about is FOMO. And so the ban does great to not only reduce distractions but also the cognitive load of constantly wondering what they're missing.
I surprisingly found this with my Apple Watch. was so concerned it would make me even more plugged in. But in reality now 90% of the time I get a junk email I just say “huh” instead of needing to open the phone to see what it is (and the other 15 notifications). Can’t have fomo if you know you’re not missing out, amirite?