The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with your computer.
This client is confined, which means that by default it can't save passwords in the session keyring. Doing so is risky: is exposes all passwords in the keyring to the snap, and exposes the snap's passwords to all applications that can access the keyring. Not doing so is annoying: the client can't remember your password and will prompt you for it each time it fires up. If you'd like to use the keyring regardless of the risks (this is how the .deb works, for example), then connect the interface to grant access to the keyring:
$ sudo snap connect nextcloud-client:password-manager-service
|Last updated||Dec 11 2017|