Your feeds
Paste any RSS address and that publication joins your deck, next to the newsrooms that come with the app. Two people who use this for a week end up with two different apps.
The feed is fetched and checked before it is kept. An address that answers nothing is refused rather than saved, so you never wait on stories that will not come.
Your feeds are kept in this browser, like everything else here. The relay that fetches them stores nothing. A feed you add is never dropped by the country filter: you asked for it, you see it.