The most common windows version is probably miktex which comes with its own package manager which by default downloads packages on use, while texlive often is m

The most common windows version is probably miktex which comes with its own package manager which by default downloads packages on use, while texlive often is most easily used in the full scheme installing every package, but there exists a separate package manager as well, which is often not included as distros want you to use the OS package manager.