There isn't anything NSFW in hazbin hotel from what I remember, however the fandom of it does have a lot of NSFW and too many edgy and corny kids/teens these days get access to things like rule34/porn, when they really shouldn't, ever, it's a DISEASE that dehumanizes in my opinion. And I'm atheist, anti religion, anti natalist turbo mega^2.
It's also not the flex everyone thinks it is, same with gore, like please shut up before I get the 20th flattened dog from my main street and shove it in front of your feet to see how you react (or won't react, which would be even worse), I still want to cry when I see yet another animal flattened personally. Yeah, call me a whiny bitch but you really shouldn't watch these things at all even as an adult, if it's government related, sure, like the tiananmen square photos, for your own information of what a government is capable of when pushed, go ahead and see for yourself.
However all these kids ,teens and young adults who get desensitized to gore and violent and degrading descriptions of sexual acts really make my blood boil, the fact that most of them search for it on their own is also incredibly disturbing.
Especially since most of them end up searching for characters/people their age when they are underaged and guess what, most of them DON'T grow up from that because they teach themselves that's what they are attracted to, basically they end up self made pedophiles. Others think sexual acts include violence, whatever I'll stop here, I don't even wanna start on the abuse in the porn industry and that it also teaches to treat women as garbage as a whole.
HORRIBLE. terrible situation all around.