OKTA SSO initial setup question

Contributor III

We are working at moving from Azure to OKTA for an authentication provider. Our Macs have no form of SSO currently for any internal site and we are trying to get that setup moving forward. It seems that Safari "just works" (which is really strange in my experiences) as we are domain bound with mobile accounts. However Following OKTA's very limited instructions I cannot get Chrome or Edge to attempt to SSO.

I am wondering if I am being told to enter the incorrect URL's for the whitelists or if more configuration than just the whistlists is needed. Is there a way to check to see what Safari is using?