adding your own music files inside Music Library in Apple Music

Does adding your own music files with track info and creating an artist name inside your Music Library in Apple Music and syncing and sharing it in a playlist make you an official artist in Apple Music or is it just available through iCloud Music Library??

what if it’s added to a playlist that you share for public listening, and your friends listen to it?! Do they see all the artist info and do apple keep your shared playlist metrics and request to add music that’s in your iCloud Music Library but not in someone else’s?!

does apple keep shared playlist count metrics played by others?!