Germany did do better, other countries in Europe did about the same, or worse.
I don't think the results have a single thing to do with WHO. It's probably much more related to cultures. The wife explains this that Germans are much more apt to following orders than the Romantic language countries. Belgium did quite a bit worse, though their accounting could be different. Denmark did better.
The UK did about the same as us despite being on an island.
WHO is irrelevant to these statistics in my view.