Ok so I just got GoG after Lord Mandalore kept singing it's praise. So what I'm asking now, is how to share games from my steam library? Specifically, Fallout 2. I linked the two accounts, but I'm lost now. I'm not entirely sure what else to do now, so what should I do?

Publishers sometimes offer to let you share games between platforms but this is usually a limited time offer.

No games up for connecting right now.

Is there a direct link to look for games to link?

https://www.gog.com/connect