10 Things Only Privacy-Conscious People Know about Email Aliases
fastmail.blog/2021/02/25/10-things-only-privacy-conscious-people-know-about-email-aliases
What Jamie wrote
I started using unique email addresses with all the websites I create accounts on a few years ago. I think this is still too much work for your average user, and if you aren't using a password manager don't even try. But there is a great privacy benefit to using unique email addresses for various services.