What you named can effectively kill 8h, every effin' day.
Personally, what I don't get is folks wearing smart watches, getting instant notifications when somebody pings them. Its apparently not enough that phone blinks and plays sounds and your desk vibrates, now your wrist has to. How desperately addicted to constant stream of stimuli they are, my boss including (and he still thinks his apple watch are great, but when I sit next to him I see how it fucks him pretty badly, plus its so annoying I want to throw him out through closed window myself and I am not alone).
People still somehow do their job, despite of these semi-useless gizmos, not thanks to them. Yes you can tune it down but for every person doing so there are 10, or more like 100 who don't do it at all. And not only for the case of my boss, it makes them objectively worse workers, employees, friends, parents and overall human beings.