Without spoiling too much and imho, there are a few NTR moments, characters and plot points, but I would qualify some/most of the non-partner spicy interactions more of "unconfirmed" Netorase at this moment as the protagonist's partner "openness" to outside relationships has not been confirmed yet and the relationship between the two is currently very strong & loving. Unfortunately F95 doesn't have Netorase or Netori tags as of yet.
Pete seems to be fairly open to Hanna having sex with other people. Early on, he asks whether she's fucked Vincent yet, which seems to suggest it's already an open topic of conversation between the two of them, when the game starts? Also when Hanna 'cheats', she never appears to be that bothered about it, which suggests she's been doing it, on and off for a while.
My guess is, it all depends how far Pete is comfortable with Hanna going? Because she does have quite a slutty side, that Pete may not be entirely aware of? Hence her initial reluctance to go clubbing without him ( having already taken some drugs). Which I reckon is why we sometimes get two 'cheating' options?
I agree, we need more specific tags, to delineate between different forms of NTR