[rvz]

There you go. "Windows" has been the most consistent in its original naming and is instantly recognisable on its own without the versioning names (XP,Vista,7,8,10). Ubuntu is also the same.

macOS was nearly confusing (was first Mac OS X, OS X and now macOS) but is still recognisable in the software ecosystem with its exact full name still used.

The name "Pop!_OS" on the other hand looks so cryptic that its users have simplified the name to just “Pop OS”. It’s likely that someone will create a distro for the sake of renaming it. I won't be surprised to see a renaming soon.