...or download the EE installers if you do not use Galaxy.

that's a weird way to select game.

So if I understand correctly, to play the EE via Galaxy I have to download the base version of the game and then download the EE through the beta channel? If I'm not using Galaxy I need to download only the EE offline installer? Well that's a discrimination... :P

No, you just need to select beta and then you'll be downloading EE version, no need to install base one.

Ok, that did it. Thanks! :)

The GoG Team provided an article of how to install the Metro Exodus: Enhanced Edition. The linked Gif in the article is pretty much selve explaining:

https://support.gog.com/hc/en-us/articles/360019935218?_ga=2.104635520.1234765467.1620390313-177543091.1604245129&product=gog

The Offline installers have been updated as well, both versions can be downloaded separately.

TBH I'd prefer an option with a separate entry in the game library, but this would of course mean separate achievements and separate cloud saves as well.

Smh this doesn't work for me - I downloaded solely the EE-installer but GoG Galaxy keeps on insisting to also install the base game. So what is it?