An introduction to the differences between OAuth authentication(?) and OpenID for non-technical users [2023 edition]

It has been said for a long time that "OpenID is authentication and OAuth is authorization." However, I feel that there are quite a few people who misunderstand the meaning of these words. I think that the evidence is that we often hear statements like "We don't need OpenID anymore. OAuth is enough." OAuth authentication is...

Further display An introduction to the differences between OAuth authentication(?) and OpenID for non-technical users [2023 edition]