Mmm, "privacy-friendly".
It asks for a phone number (it's mandatory during sign up), which can only be obtained with an official ID...
https://www.infomaniak.com/en/support/faq/2144/blocked-order
If that control is gone there is no privacy.
Why not?
With the same reasoning you could deny selling people food unless they show you their government ID.
Would you consider such an abomination a country where privacy still exists?
If you strip people from basic anonymity for no sane reason they have no privacy.
If all you want is to prevent people from signing up infinite accounts then have them solve a bazillion captchas or pay a token amount of cryptocurrency, but don't ask them to connect their account to completely unrelated private information.
Email operates independently of cell phone numbers, so it shouldn't be required to connect yours to your mail address.
Example everyone can relate to: when you go to a doctor, they look at your medical history and in most cases you need an appointment first. This means your visit is no longer anonymous. However, I think everyone agrees that you still deserve privacy with respect to the details of your visit.
I vaguely remember Google making moves toward killing it, but last I tried it, Google Voice let you get a number without providing any ID whatsoever.
And only postpaid phone plans require ID in the US.
The US and aforementioned European countries (among others)/are better about this because anyone can just get a SIM/number.