login.microsoftonline.com/tenantId not found

I am trying to determine why https://login.microsoftonline.com/tenantId/v2.0 results in a 404 for my tenant, in both the browser and Postman. Both https://login.microsoftonline.com/tenantId/v2.0/.well-known/openid-configuration and https://login.microsoftonline.com/tenantId/oauth2/v2.0/token work. According to this article, https://login.microsoftonline.com/tenantId/v2.0 should act as the Open ID issuer, so what Azure settings could be preventing that page from working?