Well technically this is Netorase, not Netorare but yeah, F95zone doesn't like to distinguish between the two.
There's actually 3 solid distinctions for ntr content, though they change about the situation they differ but they all fit or enter on the ntr quality of things.
Netorare = Classic situation of guy is betrayed and unaware of situation to have a shock later... what happens later isn't connected with the situation at all(best sample is Otome Dori) as it follows the guy reaction to the stuff the entire time, may be a video or whatever.
Netorasare = Guy wants to be cucked. Got a kind of fetish but the wife herself is unaware normally, then guy asks someone to act and do the thing so they can feel it(well, humans are complicated). Sample of work that does this: Yarichin kateikyoushi netori houkoku. The issue with this one is that it starts as netorasare and then turn to netori later.
Netori/e = Exactly the same of Netorare however, this changes the PoV, instead of following the sad guy who is unaware, it follows the guy who is stealing the girl or the PoV from the girl view the entire time and only shows the result later without showing the crash feelings or whatever... if the girl decided to leave or not.
The thing is, NTR is the general filter/term for all the situations above, and yeah, they're so classic that they're repeated used everywhere. As long as the shock/discover/similar situation happens, it's all NTR. Thats also why "Cheating" is a separate entry, because there's no intervention/showcase of whoever is suffering the cuck anyway, and normally the guy/girl who is married is all into it.