EX: if I read a post/comments in my web browser and then pull up lemmy on my mobile app it will show as read there as well.
This used to work on reddit where I was able to browse posts on Old.Reddit during the day and in the evening when I opened RedditSync they would show as read as well, but it required purchasing reddit premium.
In theory they all should - the read status is stored in your Lemmy account (provided the app is doing the appropriate API calls - if it isn’t, raise a bug report!)
Ironically, the stock Lemmy UI does not, er at least it doesn’t for divisions by zero. Using Tesseract, I don’t visually see a difference between read and non-read posts, but if I hide read posts it clears out my feed, so it is definitely keeping track.
Ha ha, maybe a bug report for the Lemmy UI is in order?
I read this post using the Alexandrite front end on my laptop browser, then I opened Voyager app on my phone and it shows the post as already having been read.
Well hot damn, works for me as well between Alexandrite and Sync for Lemmy!
At this point I just wish there was a way to change the color of read links vs. non read in Alexandrite. Maybe my eyes/monitor aren’t good, but it can be hard to tell.
I know Voyager does, at least on iOS. I would suspect most of them do.