Starting a browser with zak credentials will be redirected to the login page

When I start a meeting with my browser, I am redirected to the login page although my meeting link has already carried the user’s zak credentials.

My link to start a meeting: Sign In | Zoom

My zak is from:

Strangely enough, some users can start the meeting directly with this meeting link, but some others have to login first before joining the meeting successfully with the same meeting link.

Is the token invalid or expired?