LPOPOCA: I bought it twice both during early access GoG. One copy received it, and another didn't. I think it's on GoG and not Larion.
Curious - did you register a larian account? If so, did you register one for both games?
I'm reading their official post: "if you meet the requirements the upgrade will be granted very soon." Based on what I understand from Larian, "meet the requirements" means purchased the game in EA.
I wonder if GOG has a different version of "meet the requirements." I'm trying to spot a pattern for who got the upgrade vs who didn't.
There are lots on here who said they bought it in October or November 2020 and don't have it, so it could be purchase date. I have no data on people's location, but I'm in the US and don't have it, so that's 1 data point. I also did not create a Larian account until after the full release, though I'm not sure why that would affect anything GOG does (I doubt GOG cares, or even knows, if I made a Larian account or not... or when). I'm just looking for some semblance of a pattern here.