PowerShell Universal with SAML authentication but WITHOUT automatic redirect

Currently, we have our PSU instance configured to authenticate via SAML, which works without any issues, however when you first go to the PSU site you are automatically either redirected to the login site (in our case Microsoft for Azure AD authentication) or (if you’re already logged in) taken to the main PSU dashboard page.

What I would like, however, is that when you go to the PSU instance, you are presented with the login page used for local authentication and there be a button (link) to click that says something to the effect of “Log In With SSO”, after which you’re then take to the external SAML auth login page.

TL;DR: I want SAML auth but don’t want it to be automatically used - I want it to require a little bit of user interaction first.