[Feature] Show IdP selection also when only one IdP matches

[lukas-r]

Is there an existing feature request for this?

• I have searched the existing issues

Is your feature related to a problem? Please describe.

Right now, if multiple IdPs match a domain and Forward to first matched IdP is disabled, the list of matching IdPs is shown. If only one IdP matches, an automatic redirect happens. This redirect can be unexpected for the user, because there is now hint for him that Keycloak is gonna redirect to another IdP.

Describe the solution you'd like

Add a config option that allows showing the IdP selection page, even when only one IdP matches. This way, the user will need to explicitly have to click on a button to identify via the external IdP and the redirect will not be unexpected. This can be considered a UX improvement (even though an extra step of clicking the IdP button is introduced).

Describe alternatives you've considered

No response

Anything else?

No response