In the Netherlands, burgers are definitely a thing, but the ones that get people excited so far appear to have been chicken, meatballs and smoked sausage (which are traditionally important here). The introduction of the Beyond Burger made some noise, but mostly because of it being hyped in the US. It does not appear to be a regular buy, though that might be because it's also really expensive, comparatively.

All anecdotal, though.

Finland. Lots of domestic meat replacement products. I know Germany doesn't have nearly as much, but that's not too surprising as it's a slow adopter of everything.