I would love the ability to filter on certain friends/following so I can focus on just their newsfeed updates. Some people read a LOT and clog up my feed. This seems like a good middle ground so slower readers don’t get lost in the shuffle but I don’t have to consider unfriending the prolific readers. Bonus points if you can select multiple people at once for the filter.

Ex. Reddit has a way to pin certain subreddits so you can only scroll through that subset in a custom view.