I suspect it’s a cost/capability/requirements thing.
The larger the corporation, the more likely they’re going to have SSO as a minimum requirement. The more inflexible your customers are, the more you can charge.
Entra’s free tier offers federated / SSO so basically every company with an MS license (which is an overwhelming majority, in my experience) can do SSO if they wanted to.
I suspect it’s a cost/capability/requirements thing.
The larger the corporation, the more likely they’re going to have SSO as a minimum requirement. The more inflexible your customers are, the more you can charge.
Entra’s free tier offers federated / SSO so basically every company with an MS license (which is an overwhelming majority, in my experience) can do SSO if they wanted to.