It varies a lot. My kids will run around and play given the opportunity, but when they arrive home at 6pm from after-school club, completely exhausted, I think it's fair that they get to collapse in front of a screen for a bit.
For my parents, it was the radio.
For their parents, reading out loud for everyone to enjoy ("Mr. Dickens has published another episode of The Pickwick Papers!"), or playing instruments.
My son has been taking violin for years, is really good, and loves it - but most of his practice time is still really hard pieces that need a lot of practice of the hard parts (stitching between 5th and 2nd position...) and he would prefer to sit down at the piano (he stopped lessons years ago) and play an easy piece.
Collapsing in front of the TV with the family was still quality time enjoying something together.
Meanwhile, my brother would often go dig in and read a fiction book in isolation. Which is fine and great and all. I'm definitely not taking a dig at reading a book in any way. But, its not like only screens lead to isolation. There's plenty of tasks one can do at home that then become isolating.
Observe young people using their phones, and you can see the social use is often just occasionally switching from TikTok to a chat app, dashing off a one-line message, and then going right back to TikTok. Big difference from having actual long phone conversations with friends after school.