the shop says there's a Dorfromantik demo but clicking on it just moves me to the shop's front page?
This happens pretty damn often. Just how understaffed is gog

you can also play the prototyp game of Dorfromantik:

https://toukana.itch.io/dorfromantik-prototype

In this case the demo is just off, probably a time-limited offer (which is not cool) in the most other cases the games you want to reach are censored/geo-locked in Germany (which is absolutely cool...).

thanks!