This was a feature that I fell in love with on Boost. I like to sort by top day and do short quick bursts of scrolling through the feed, so it helped a lot.
I’m not even sure if it’s possible on lemmy, or if anyone else feels they’d get use from it as well.
Fellow joey user, love this feature and need it too
Mark as read while scrolling > hide read on re-open > (in case you need to re watch something) temporarly unhide read posts