OpenID was aiming to be a decentralized digital identity solution for everyone but then companies opted out for own solutions.

I'm seeing more and more sites pushing for signing with facebook/apple/google accounts and I'm afraid how the Internet may look like in a few years. It seems we're on path on total sanitization of online services, sites and content to the point where everything will be "safe", verified and authorized and so will be users.

I'm sure there's enough folks here who have gone through the single sign on fun, which anecdotally can expose you to the independent ID hosting.

I believe it's still possible to run independent identity services and route it through one of the cloud providers in some cases.

Creating your own email address on your own domain and then enrolling your own domain in identity accounts seems to be one practice I saw being mentioned the last time I was brushing up on SSO.