Really, it’s “what’s important?”
The question is yours to answer, we’ll all have a different list, sometimes several things, sometimes one.
But as social feeds get better at gaming your very human instincts and desires, it’s ever more incumbent to decide how much time is too much to spend with them. To that end, writing down the one or three things you view as “important” could be a useful reminder to spend most of your free time on them, and not digital minutiae.
Title: “What’s Important?”
And then use that to focus your attention and daily habit.