Windows 11's major version number is actually 10.x.x, which can be confusing
if you don't know about this quirk. `OS.get_version_alias()` avoids this
by displaying the "branding" version number and the build number as a suffix,
so that individual updates can still be distinguished from each other.
On macOS, `OS.get_version_alias()` returns the version number prepended
with the version name (e.g. Sequoia for macOS 15).
On other operating systems, this returns the same value as `OS.get_version()`.