I don't think it's that weird that Finland and Sweden are on the top of these lists since we basically have 8 months of winter and gaming hasn't ever been that shunned of a hobby.
How does equating speed runs to anything mean anything? Speed running is such a niche hobby inside of gaming that barely reaches 10% of the community.. Yet its the basis their deriving this information from? So many other sets of data would drastically change this answer.. The answer still is likely an asian non China country.. Since China openly cheats regularly and its openly practiced. I also think technically millions and millions of casual gamers understand games better than a country of 1000 where only 1% has played a game period. a person devoting their whole life to finishin a game quicker and quicker versus someone who just plays new releases its still a negative to me.