[998244353]

> FluffyChat, Nheko, Cinny are all great fully featured apps and separate codebases

Ok, I was mistaken about everything being an Element fork.

To move the goalposts slightly though --- do any of these apps properly support threads (i.e. messages in threads show up in and only in separate views)?

[Arathorn]

Afaik Element Web (and the legacy Element mobile apps) are the only ones which have done threads so far, perhaps because the notif problems you mentioned put off the others. These have been fixed now, but others (even Element X) have yet to catch up.