Funny thing is those faxes are going through internet anyway most of the time.
Where I live fax are considered a legal proof contrary to emails.
So for important contracts it is considered safer than mails.
And honestly it kinda is since an email can totally end up never being recieved without any kind of error or warning. A fax you should know immediately that it wasn’t received on the other end.
I still wish fax would disappear soon but an email is not a good replacement.
Emails are now considered the defacto standard for businesses but they suck and are absolutely not reliable.