You're probably on communities.win, they don't show up there
They will show up on Patriots.win
I've seen many people asking questions about this, and it keeps growing. I already messaged the mods to make some stickied announcement about this, but no response yet.
From my experience, not sure if technically correct: you get a new set of folders for each community you save posts from.
Well maybe, but when you save something on patriots.win and go to communities.win/patriots it won't show up even if in practice they're the same thing just on different url
Anyway. People keep asking, so here's the tip on why is that and what to do