SSO Login redirection does not work [Linux Ubuntu 26.04]

Hello,

I have installed the Zoom Client (version 7.0.5) via DEB (I also tried the older SNAP version). The client won't let me log in. I use SSO to log in. I am redirected to the Zoom web page where I can log in successfully and even start a meeting. However, the app does not recognise the information about my login.

There is no error message - starting via terminal won’t give any hints either.

Any suggestions?