Sadly, I've noticed this with myself and friends.
We'll be playing a game together on PS4 and instead of just naturally carrying a conversation during a loading screen, a friend will pick up their phone and check their messages. A break in between plays, and yes, they'll check their messages. Check the score. Check a webpage. Sometimes my friends will literally be distracted from playing the game by checking his phone.
It's not until we're sitting at a table eating food for which all distractions are off the table.
Even when I'm tackling a tough problem like a programming challenge or trying to type a detailed reply, instead of sitting with the problem in my head I find myself trying to quickly distract myself. Instead of giving myself 10 minutes to struggle and think, I'll open a new tab and take a quick break to YouTube or HN.
I have noticed that I'm in that very distracted state, one thing I find helpful is to meditate for 10-20 minutes. Just accept the fact that I'm being 'inefficient' for that time and slow down. Reset. Breathe and let my mind kind of settle. I find that if I keep doing that over a course of a day, I'll find that I'm more productive and able to think about things instead of constantly demand to be distracted.