

Summit, Voyager, Boost, Thunder, Eternity, Connect etc.
Actually this feature is a requirement to me (as well as a button/shortcut to hid said read posts) so if a Lemmy client does not have it I just won’t use it (reason number 1 why I stopped using Sync for Lemmy, it has been broken for months now).
Only if you have a very old Lemmy instance.