Is quick start supposed to launch every time you access Jellyfin from a new browser?

[theguymadmax]

I have the same issue, but my biggest concern is that even if IsStartupWizardCompleted is set to true, I can still open wizard http://server:8097/web/#/wizardstart.html and reset the admin passwords any time.
I think it is a very big security issue.

That's because you are you'll re-logging in from a browser that remembers a session with the admin account. This topic has already been brought up and debunked by the Dev team. https://github.com/jellyfin/jellyfin-web/issues/6486