Do you use an email alias even on big/main accounts?

Think Amazon, Apple, etc.

I use different emails via SimpleLogin for many services just to make it easier to spot when an email is caught in a breach and to spot just which service is the one that got breached (think of big paste breaches). Another example is if I have my real email address breached, some malicious person could see if I have an account with a service by entering my email and seeing if anything comes up (your password was incorrect, profile picture I have on the account, a password reset email has been sent to redac***@censor.com. I’ve seen this a lot with my Microsoft account, which I disabled my email for, and instead use my Gmail address for, but I digress.

I use my Amazon account a lot, but was holding off on using an alias on it. Obviously if I stop paying for a relay service I won’t have access to the email relay service and possible forwarding, but this shouldn’t be a problem. I was curious about how people here utilize aliases and the way you personal have your system/workflow setup.

Thanks!