My grievances with Proton

Proton CEO says it’s fine. 1:00:45 to 1:01:05

Reddit FAQ

Terms of Use Am I allowed to have multiple free Proton Mail accounts?

Generally, having multiple free accounts is not considered an acceptable use of our service, as it has often been misused and abused. However, if you have 2 or 3 accounts that you don’t use for bulk signups, creating free accounts for others, sending spam, and other prohibited activities listed in our Terms and Conditions, you have no reason to be worried.

This person said support was fine with it