@EzWeeb
Actually I specified 'villainess' because there is a huge distinction between normal isekai and villainess isekai other than genitals;
reincarnation type, and consequences.
Normal isekai protagonists are almost always reincarnated in new bodies, usually the same ones as their own from their previous life (Konosuba, Re:zero, etc ), or in completely new bodies(slime, kumo desu ka, mushoku tensi, tanya, etc). However, villainess stories always have the main character wake up in the bodies of pre-existing characters, ones who are already known and established for other characters in that world.
Because of this, normal isekai don't have anything to gain or lose from the people around them knowing they're reincarnated, so it doesn't really affect the story much even if they divulge that information. That's why while it's pretty cool, I don't count it as too significant- most normal isekai protagonists do eventually reveal their status to close friends, but it doesn't have much effect on relationships, since they didn't write over anyone.
Villainess reincarnation on the other hand, actually has questions that need to be answered ( ironically the same quandaries as the Wonder Woman 1984 rape fiasco, lol)
1) Are you just stealing someone else's life? what happens to the previous owner? are they just dead, or trapped, unable to do anything as this stranger does what they want? Is it violating them to do what you want, like have sex or get into danger?
2)Is it okay to significantly change relationships the original owner built? Even if you find it distasteful, should you respect their decisions?
3)Most villainess stories just hand-wave this by saying their souls merged or whatnot but their personalities are almost entirely like the reincarnator, is that fair?
4)What about those around them? Do they feel guilty for liking someone completely different from the original, more than the original? What if they actually liked the original?
This is the only story where these questions are answered, which I do believe is enough (at least for now) to make it not 'generic dogshit' despite, admittedly, having a fairly generic plot. (Also in no way did I imply that I thought this was a masterpiece)