As an Admin, when you create and deploy packages, your end users need launch the Creative Cloud Desktop app to get started with Adobe products and services. When users launch the app, they are required to sign in.
By default, users will need to sign in using the Creative Cloud desktop app. However, you can choose to redirect users to sign in via the browser.
To ensure users sign-in via the browser, choose Enable browser-based login.
End-user experience
As an end user, if you aren't already signed in, when you launch the Creative Cloud desktop app, you are immediately redirected to sign in via your default browser.
After you sign in, you are prompted with this message:
When you go back to the Creative Cloud desktop app, default panel is displayed.