users.users.<name>.packages vs home-manager packages

users.users.default.packages = [
  pkgs.foo
];

home-manager = {
  users.default = {
    config,
    pkgs,
    nixpkgs,
    lib,
    specialArgs,
    options,
    modulesPath,
    nixosConfig,
    osConfig,
  }: {
    home = {
      packages = [
        pkgs.foo
      ];
    };

  };
  useGlobalPkgs = true;
};