macOS versions after 10.15 are not grouped well.

[caldwell]

For Mac OS X 10.15 and below, the major release was the 2nd number in the version (the first was always 10).

The release after 10.15 was called 11—Apple changed to the 1st number being the major version.

Currently Matomo groups these post 10.15 macOS versions by their minor number. So 15.0 is not grouped with 15.1,
26.0 not grouped with 26.1, etc.

I believe this is incorrect as it doesn't match they way Matomo groups Windows or iOS versions.