Surprisingly there is "adult" content in CK3. There is actual fully modeled nudity (at least for breasts). Supposedly you can get breast "traits" and grow big ones (or small ones, but I wonder how that would work in australia, because small breast nudity is illegal in australia). But this is only what I heard in discord so not 100% on that part of traits.
I'm not sure in what context the game would show bare breasts. If someone finds it, I'd quite like to see the original source of this information. However I'm sure even if this isn't true, it will be modded in, considering something like that was modded in for CK2 which couldn't even show the breasts since the portraits don't go down that far.
Also, small-breasted nudity is not illegal in Australia. Not to stop anyone from making fun of the Australian government, which easily as disfunctional as any other governing body, but that didn't pass.
Like imperator rome got review bombed
No it didn't. People legitimately found it not to be fun, and the player numbers reflect that. By a month after release, it had lower numbers than any other Paradox game released in the last decade, comparable to Victoria 2. When your new release has a tenth the users of most of your other games and is only comparable to the one that the company barely support and doesn't intend to make a sequel to due to low numbers of users, it's pretty clear that the people leaving negative feedback aren't just review bombing.
As an aside, I also like the DLC policy now, but it took them a while to get it to this point and their were some questionable decisions along the way.