While this is a solution its a terrible workaround for a large playlist. The developers should really implement a means to filter playlists by most played, most recent ect.. on both the mobile and desktop platforms.
I believe that “ideally” there should be a setting we can enable so we can add newly added songs to the beginning of the playlist rather than the end where it makes no sense, I added a song that I wanna listen to, to the end of my 100 song playlist. It just doesn’t make sense.
This doesn't solve the issue for several reasons. The "order" of a spotify playlist is tracked, but invisible to the user (except in how the list appears when unsorted).
Sorting by date added is not the same as reversing this order. Also, you may add many songs at once, and sorting by the date added field header does not provide the desired outcome in this case.
Adding a menu option or submenu option to add to the beginning or end of the playlist (or adding a toggleable option on the playlist itself that allows users to choose whether songs will be added to the beginning or the end of it would be invaluable to users - this API would be especially useful in conjunction with other playlist management services that people combine with Spotify like IFTTT)