If you are like me, who install’s Spotify through Flatpak because immediately is installed I hit SpotX to not to have to listen to ads,
then you may not be able to login like in the above image using the default xdg browser, so in this case we run the following command in a terminal, replacing the username & password with ours…
flatpak run com.spotify.Client --username=deviceusername --password=regularspotifypassword --show-console
The result is that the application opens normally, and is not affected by whether we close the console or not.
Happy “listening” 