Agreed. I find the mere sight of the Facebook or Google logo off-putting and resent the implication that it is a higher-priority login mechanism than email, a sort of act of fealty of the app/web developer to the big platform middlemen.

I run my own mail server so it's easy for me to implement vendor-specific email addresses that cannot be correlated with other vendors', but more and more companies are offering that as a service nowadays, DuckDuckGo most recently:

https://www.spreadprivacy.com/introducing-email-protection-b...

I do use GitHub federated login, but only for apps like vulnerability scanners that do need OAuth access to my repos.