[TehCorwiz]

I personally use a generated email with each service so I can track who shares my info. Sso defeats this method of reverse tracking.

[TheNewsIsHere]

I prefer the split approach. I use SSO on the inside of my home network and for hyperscalers and things like Tailscale. At least partly so I could enforce hardware auth when not supported or sane to implement natively.

Everyone else gets a custom email address.

It’s a nice in-between.