Client log in when user logs in?

I have a desktop that uses someone else’s owncloud, and now my own nextcloud. When I log in to the desktop, the owncloud client syncs up. However, the nextcloud client always requires that I open the web browser and log in to the web client, then the native app is logged in and operates. What does it take so the desktop client logs in and ‘just works’ every time I log in? (Kubuntu latest)

Which nc version?
Which client version?

Have you checked the client log to get details?
Please see on how to do that.

nc 22.1.1. client 3.1.1 (Ubuntu).