Japan it´s not a metric for more westerns countries, there the numbers of sales of ps5 are high, but the physical market, new and used, doesn´t have the same trajectory: PS4 physical software goes down. In Japan, you have more appreciation for physical media. So there, you can see it was scalpers. In Spain, otherwise, the digital shares are higher, than we assume the scalpers have minor force.
But even if we assumed that the retail sales are just 10% of the total sales of a game in Spain, that still wouldn't explain why there are no PS5 games on the top ten, since all other platforms have digital markets as well. It'd be weird to assume PS5 gamers are so digitally focused in comparison to PS4 gamers (Switch nonwithstanding, handhelds profit from phisical media more).
You know it deserves the GOTY.