Explicit Content in Apple Music
How to enable explicit music content in Apple Music using MacBook?
Question marked as
You don't need to enable it. Explicit content is available by default by looking for tracks with the small white "E" in a red box on the corner of an item denoting Explicit.
If for some reason you cannot find any, then they may have been explicitly restricted.
See here to re-enable them: Restrict access to items in Music on Mac - Apple Support