Actually, nowadays PDFs in email are also accepted instead of fax! (or emails signed with the ePerso S/MIME function).
So far a court, a health insurance company, the national pension fund, and some municipal administrations I've had contact with all have accepted PDFs attached to emails just fine :)
And if you ever need actual fax functionality, the most common home router (Fritz!Box) has a virtual fax machine integration, so you can send and receive faxes with an app or an email gateway from your own VoIP SIP "landline" connection.
So far a court, a health insurance company, the national pension fund, and some municipal administrations I've had contact with all have accepted PDFs attached to emails just fine :)
And if you ever need actual fax functionality, the most common home router (Fritz!Box) has a virtual fax machine integration, so you can send and receive faxes with an app or an email gateway from your own VoIP SIP "landline" connection.