With BA, DA and SW in particular, there is a level of homogeneity between the disparate chapters that does not extend to the others.
So while Death Company are universal across all IX legion chapters, would a Raven Guard specific unit persist to the Raptors, etc.?
Until now, there weren’t any SW disparate Chapters, and the Primaris Wolf Successors really aren’t all that disparate from other Primaris Chapters.
As far as the BA and DA, while the BA have Death Company, you have to ask yourself the Why for their Successors having the same structures as their progenitors - we know it isn’t due to the gene-seed, because we have the example of the Swords of Haldroth/Carmine Blades - they lived for an unknown number of years (anywhere from only a couple of hundred if they were 26th Founding all the way to several thousand from prior early findings) believing they were an Ultramarine Successor who “accepted the Blood Angels’ traditions only grudgingly”. We don’t have any real clue on what their Order of Battle was, or if they preferred jump pack assaults, etc., prior to discovering their Blood Angels connection, but given that they accepted the traditions grudgingly, it’s probable that they didn’t to me - why would you have a hard time accepting something that should come so naturally to you if it’s just baked in. The Swords of Haldroth didn’t field “Death Company”, that’s for sure - even though they were Successors of the Blood Angels, whether they knew it or not.
We know that the DA induct their Successors into the Unforgiven, and their self-assigned tasks regiments their training, structures, etc.
Given these two elements, we can (you don’t have to, but it lines up to me) follow logic to the conclusion that it’s training that makes Successors take on similar unit types.
So given this, it’s likely that any Raven Guard Successor Chapter that was trained in the ways of battle by the Raven Guard or any other Raven Guard Successor trained by them would get a unit that was similar/identical to a unique on used by the Raven Guard. Same with the Iron Hands, Imperial Fists, Salamanders (who, like the Space Wolves, only recently had acknowledged Successors), etc.