Yes, it could be better. But its also parents who need to get their shit together. I know so many who park their kids in front of tablet, phone or pc - not for a breather or a short distraction, but as the standard way to entertain kids.
Because they fear that the kids might be bored. But boredom is good, it gets creative juices flowing. However, you have to be hard and tell nagging kids no, and that is hard
If kids have been inducted to immediately get a phone whenever they whine a bit, there is not much school can do.
Sit quietly, sunken in your thoughts and deeply relaxed - I see nothing wrong with that