Yes, yes, and it’s NT/Windows or as I’ve taken to calling it NT+Windows…

This point is pedantic and tired to the point that it has become an infamous copypasta.

It’s also, at least as stated here, not even technically correct. A kernel is an operating system all on it’s own. It just can’t do much.

GNU just provides the software that the user interacts with.

Additionally, there are a number of Linux distros that are entirely free of GNU software.

Just about everyone understands what you mean when you call Linux an OS. The pedantry is unneeded.