Yeah, it’s always stupid what ends up there and what doesn’t. And because of Germany’s stupid laws the German version often ends up worse than other versions (often even removing the English language option) (And people are surprised that we hate our northern neighbors…)
Here’s a (non-exclusive) list of banned games in Germany (it’s in German but the game titles should make it accessible to people that can only speak English): https://de.wikipedia.org/wiki/Kategorie:Indiziertes_Computerspiel
Oh yeah, Half-Life was indexed in Germany until 2017 (coincidentally when they switched from Elke Monssen-Engberding to someone less grumpy (half of the stupid decisions coming from Germany just stem from some grumpy old person who’s entrenched in a Department))
It really has gotten better over the last couple years but for two decades they pretty much banned everything with the slightest hint of being adult. They are I believe also the reason for why Contra is Probotector in Europe