Me too. That's probably the easiest comparison and one of the reasons I struggle with Kagi's pricing. I get Proton's highest paid plan for less cost... and that includes all their products, mail, VPN, 3TB cloud storage, and clearly doesn't sell any of my data since they don't have any access to it. Not to mention that my paid plan subsidises free users. (Assuming I upgrade to Kagi Unlimited which it definitely looks like I will be.)

I use their email aliases function a lot. So you can one-click generate an email to use when you sign up on a service and when you don’t use that service anymore, delete the email address.

I do the same thing, but with a catch-all email. Only started doing that this year and it makes such a huge difference when signing up for services!

(I know that Proton has a similar one-click service, but I worry about some scenario 10 years in the future where they decide to shut it down and I have to migrate all my logins.)