https://en.m.wikipedia.org/wiki/Catullus_16
I don’t think anyone considered that the Latin syllabus might be a cause for concern.
This picture isn’t sexual at all but it’s still Not Safe For Work in the strictest sense.
I still wouldn’t have opened it in the open space :)
Thing is though, if you can get in trouble for browsing the internet while at work looking at anything at all, you probably shouldn't.
So it's not "adult content", but probably "NSFW" unless you work in a maternity hospital.
Just as a comparator, the Wikipedia page https://en.wikipedia.org/wiki/Pregnancy leads with a clothed pregnant woman (unlike the pages on e.g. labia, penis, anus, breast, which lead with a direct shot of the body part), and overall that page has photos or illustrations of 4 clothed and 3 nude women (and a CT scan volume render, does that count as nude or not?)