I remember reading that DRM is really only helpful at launch time anyway as it can slow down (but not stop) pirates, ideally forcing those most excited ahout your game to pay. Once your sales are slowing / pirates have already broken the DRM there really is no further point to it, unless maybe you're regularly publishing updates and the DRM is still slowing the pirates?

It might be that Krafton has a weaker relationship with Denuvo than Microsoft did.

From what I can tell, it looks like their only other games that have used it were the Callisto Protocol (which also had it removed eventually) and inZoi (which used it during beta but removed it before the full release).