These reports from Common Sense Media always make for an interesting read. - https://www.commonsensemedia.org/research/social-media-social-life-2018. This is worth a look at and thinking about how it might apply to the young people we work with.
I am surprised that social media makes teens feel less lonely and less depressed. Maybe not the ones I work with! But we really need to take into account the differences between students with high and low social and emotional well being.