Are you by any chance from Korea? Cause that hysteria about “fan death” seems to be a prevailing urban myth around there:
https://www.reuters.com/article/world/electric-fans-and-south-koreans-a-deadly-mix-idUSSEO210261/
But apart from people with dust mite allergies and the like, where air circulation can increase the allergen content of the air, sleeping with an fan on does not come with any health risks whatsoever:
https://www.sleepfoundation.org/sleep-faqs/is-sleeping-with-a-fan-on-bad-for-you
Almost correct, but artistic depictions of Nazi iconography actually are exempt from the ban (falling under “Kunstfreiheit” - artistic freedom).
The reason why Wolfenstein still had to be censored was because video games were not really seen as a form of art for quite a long time. But AFAIK that has fortunately changed in the last years and you can now legally obtain uncensored Wolfenstein versions in Germany.