If you’re not getting redirected to an external SSO server then none of that matters and you’re not using SSO. Is the site public?
If you’re not logging in to whatever is in the blanked out Discourse Connect URL then you don’t have any problem.
Wiat. You don’t show Enable Discourse Connect I suspect it’s not enabled and that’s what it doesn’t show when you have “only show overrides”
You don’t need to do anything.