Windows has WinGet now. It's probably already installed but if not, their install page says it can be installed from the Microsoft Store. It also has WSL for running Linux programs.
Everyone who needs to use Mac or Windows due to work will very likely not have permissions to install anything anyway. And the lost souls using those "Operating Systems" out of free will ... well "some just need to be left behind. The family doesn't need to care for them anymore."
Package managers are great until you realize you don't know if you need to install "firefox" or "Morzilla Firefox" or "Firefox browser", only to realize you don't know how Mozilla is spelled.