I took a orchestral music apprecication course, and this playlist(a different one from above) contains the pieces we covered in class (it has better structure in terms of music history and musical periods).
Each piece in the playlists is only a part of the whole work. For example, I usually just choose one movement out of the four or five movements of the whole symphony. I highly recommend that listeners listen the whole thing to have a more wholistic view. To do that, you could click on the three dots on the right side of each piece, and click on view in apple music, which will direct you to the album this piece belongs to.