Atlantico: I don't get that experience at all, I always use the latest WHQL AMD GPU drivers on my AMD GPU. I've got plenty of "nvidia" branded games, all of them work just fine on the my AMD card.
Even games with nvidia supermega specific optimizations such as their physics engine work 100% fine on an AMD card.
I've never found it to be helpful to hold on to older drivers, but it may be a good thing, once in a blue moon. But generally, no.
Also, to be absolutely on topic as well: Dreamfall Chapters runs like ass on Nvidia GPUs as well. This isn't and AMD problem, just a shitty optimization of the game. For everyone.
Some games are optimized in a way that makes them only playable on the brand they're optimized for. I remember one game where they had water going constantly underground and it would make the game virtually unplayable on AMD hardware. Or at least I think it was AMD hardware. Anyways, it was not just a lack of optimization it was as if it was specifically designed to prevent people from playing the game with the wrong brand hardware.