I've been using 1P for years, first on macOS and now on Ubutnu. It's useful, helpful, solid, syncs well across Linux, macOS and iOS devices and apps and provides the right balance between nanny state and user autonomy.

The killer feature, however, is that this team is fanatical about updating, not to mention that the user update experience is seamless.

1P was the first app that I decided it was OK to subscribe to, rather than have a permanent license. It's a gottahaveit.