Approximately everyone over 50 in Germany uses a landline phone when at home, and of those just about all use DECT.

Back when it was at the BCC, I remember when they used to tell you to Absolutely Not buy one at Media Markt over across Alexanderplatz and just return it after the Congress. Phun times.

In Germany, many people love routers from AVM called “Fritz!Box”. They all can act as a DECT base station to use with either normal landline or Internet telephony.

AVM also has a line up of smart home devices based on the DECT standard that work in conjunction with their routers.

I have one or two DECT phones but no landline for them any more.

The last 'landline' was going out over the fiber anyway and was some kind of emulation. The router had a phone jack to plug an old school phone in.