It is already frowned upon in some social circles, occasional browsing is okay but some people can go completely off reality when going through their Facebook feed, I have some friends like this(very introverted), when we met at a bar or restaurant we would make a "phones on the table" rule, first to reach for the phone pays the bill.
For me, the hyperbole of social media dependency is how it changed travel experiences. People always took photos of travels, but social media put that into comical territory.
It is bizarre watching other tourists around, how they navigate from spot to spot to get a picture in some of the most famous places on earth without ever stopping to absorb where they were, they never bothered to understand the history or the architecture behind some place, they have 75 pictures of the same place but probably couldn't tell you the color on the walls five minutes after the picture was taken.
I like to stay at hostels and meet other people(especially when traveling alone), there have always been people in their own bubble, but it is crazy how it changed in the last 3-4 years, everyone is so self-envolved on their phones that they are not even aware of their surroundings, you can come in and out of a room without being noticed, I've seen people spend their entire time locked in a room glued to their phones, sometimes even missing meals.