Remove all sits beside Import in Settings, since emptying the list is
the other half of replacing it. It asks first and counts what goes:
210 channels, 3339 videos, 50 downloaded files, in those words. Nothing
changes on YouTube, and the confirmation says so — importing or reading
the list again brings it all back.
It takes the same path an import does when nothing survives, so a video
saved on its own from the menu bar is left alone: its channel was never
a subscription, and this is about subscriptions.
The app also reopens whatever was playing when it last closed, if that
video is still in the feed and still playable — offline, one that was
streaming is not. The note is made while the player is open and dropped
when it is closed, so a restart only reopens something you were in the
middle of, never something you had deliberately finished with. Verified
both ways: quitting mid-video came back to it, closing the player first
came back to the feed.
The panel's Remove all downloads is gone; it was a misreading of the
request.