Proton already offers this feature in 2 places.
1. Catch-all email in Proton Unlimited plan
2. Paid plan of SimpleLogin.
If you already are a paying customer and don't want to pay for 1 more subscription, 1st option if for you. After setting up catch-all email with custom domain, you can use any username@yourdomain.tld as alias without setting it up in settings as another address.
If you want unlimited alias without adding custom domain, then I am sorry but you have to use a service which specialises on email alias, such as SimpleLogin or Firefox Relay. Firefox Relay is the cheaper option.
I'm gonna vote for "Not at all" because even though proton mail isn't for managing aliases, it does offer that feature, albeit some setup by user is required.
Proton already offers this feature in 2 places.
1. Catch-all email in Proton Unlimited plan
2. Paid plan of SimpleLogin.
If you already are a paying customer and don't want to pay for 1 more subscription, 1st option if for you. After setting up catch-all email with custom domain, you can use any username@yourdomain.tld as alias without setting it up in settings as another address.
If you want unlimited alias without adding custom domain, then I am sorry but you have to use a service which specialises on email alias, such as SimpleLogin or Firefox Relay. Firefox Relay is the cheaper option.
I'm gonna vote for "Not at all" because even though proton mail isn't for managing aliases, it does offer that feature, albeit some setup by user is required.