if there were a bunch of those symbols (all on one single room I might add) that absolutely seems suspect

Technically, I could understand that... IF the in-game character living in that room, were supposed to be a Nazi sympathizer. Otherwise, it's a clear dog whistle.

Otherwise, rules have changed, and that symbology would no longer get the game insta-banned in Germany... as long as it was only used "in an artistic way":

Germany lifts total ban on Nazi symbols in video games (10 August 2018)

As someone who has played through that game 3.5 times (I'm in the middle of another playthrough right now) I can say with high degree of confidence that I have never noticed any nazi memes 😳

I'll look for them specifically??? But I'm already pretty aware of that sort of thing because I'm in a group that nazis hate. I think I would have noticed and quiet literally would have been like "what the hell is this shit?" OR I would have attributed that kind of writing too an actual perhaps racist character in the town, but I haven't felt that way either. I just don't know what they're talking about, again as somebody who's played the game three times.