"...Two-thirds of German companies regularly use faxes, whereas only half of them use video conferencing technologies, and just one-third use messaging services or online collaboration tools..."
https://www.handelsblatt.com/english/companies/digitization-...
Fax still being common is true though, it's mostly used as a quicker alternative to mail with established legal standing and more convenient than rolling out electronic signature schemes. You can still live and work without a fax in Germany, you will just be sending more letters. I've never sent a fax or letter to a German cloud provider though (despite using several of them)
1: https://de.statista.com/statistik/daten/studie/1929/umfrage/...
"Japan’s reliance on fax machines lambasted by coronavirus doctor": https://www.independent.co.uk/news/world/asia/coronavirus-ja...
"Japan Can't Get Rid of the Fax Machine With Offices Demanding It Stays": https://www.insider.com/japan-cant-get-rid-the-fax-machine-o...