Has anyone gone through and anonymized all their registration email addresses

With the release of products like Firefox Relay and Proton Pass and probably others, it's become really easy to just create fake email addresses which seems like a really awesome way to help obfuscate attempts at password cracking between services.

just wondering if anyone's gone through the hassle of it though, I've done it on a handful of sites that I've registered for but am leary of doing it for like the... four gazillion places I've registered at already over the past 30 years.