As of 22.0, new installs and players can ‘Play as Guest’ where new players can try the game without providing a login method. 

We recommend all players secure their game account by logging in with Email, Facebook, or Sign in with Apple. Guest accounts cannot be recovered if you uninstall the game unless you secure them with a login method. 

Guest accounts cannot be merged with existing accounts. Guest accounts may have limited access to some features such as in-game chat, available active games, or private Clubs.