Under the SAML settings tab you can find some advanced configurations
Encorce SAML login
If you want that all users sing in with your Identity provider then you can enforce login. This will take effect immediately and applies to all users. You can bypass the SAML sign-in with the bypass URL.
The SAML tools give you access to the “Login logs” and an option to test your SAML setup with the “Test login” option.