I work for a large German company and some of our suppliers and business partners have had a fax machine for a long time that they used exclusively for our purposes.
Fortunately, these times are over, and the company has celebrated the long overdue abolition of the fax machine ;-)
One can so easily set-up a company without it so. 90% of what you read about companies and how to run and set them up im Germany on HN is wrong.