I read this in Elrond voice thanks to your avatar and it was surprisingly plausible!Not bad, but if it's D&D, that's like saying, "hey all, try to look interested while Steve looks up all of his 3rd level spell options, again, and your character stands around like a punching bag for ten minutes until your next turn starts."
I thought at one point I'd need to do a no screens at the table rule, but ironically, technology progressed and it's no longer an issue because people have their game-related app/character sheet open, generally speaking, and so it perversely speeds things up because Steve was staring at his phone but was actually staring at his 3rd level spell options during your turn!
Facebook was a big damn problem in, like, 2010, because people were on it a lot and distracted by it, but by 2015 people were totally "over" it. We do have one player whose phone is a problem, but solely because he has a very controlling/needy spouse who is prone to inventing/inflating crises he needs to deal with. And that's been a problem since before smartphones. Since Facebook there's been no app that distracts players routinely.