With that in mind, you can look at a social media site and think about what pieces of information could be available and what actions could be possible. Then for these you can consider whether they are: low friction (easy) high friction (possible, but not easy) disallowed (not possible in any way)
I found the discussion of affordances and friction especially thought-provoking, because design choices are not neutral—they actively guide user behavior. Features like infinite scroll reduce friction in a way that benefits engagement metrics, but from an ethical perspective (especially care ethics or virtue ethics), they can undermine users’ ability to rest, reflect, or disengage. This makes me think that “frictionless design” is not always ethically better, and sometimes intentional friction can actually support more responsible and humane use of social media.