You can now move playlists between Apple Music and YouTube Music in an official manner. Apple has published two help documents (linked as the Sources below) which outline what you need to do to switch from one service to the other. Before you ask - no, there's no official way to move from Apple Music to Spotify or Spotify to Apple Music. For now, it's only Apple Music to YouTube Music or YouTube Music to Apple Music. Keep in mind that only the playlists you've created (including collaborative playlists that you own) are transferred. Music files, non-collaborative shared playlists and...
Source: https://www.gsmarena.com/you_can_now_transfer_your_playlists_from_apple_music_to_youtube_music_and_back-news-64318.php
