I just verified this by blocking switter.at, BTW.
Don't get me wrong: I'm glad Switter exists because sex workers need and deserve safe spaces more than anybody else, but I visit Mastodon on my phone at my day job instead of going out for a smoke break. I don't need un-tagged NSFW material showing up in my feed.
And I don't mean nudity. Because I'm a man, a woman looking over my shoulder and seeing a photo of a woman in lingerie can accuse me of sexual harassment. I don't need that hassle.