Your point is?
Accessing your playlist information on various services
This is a really interesting chart from Soundiiz.
https://soundiiz.com/features
It shows you the access Soundiiz has to YOUR playlists on different music services. On some, it is read only. That means you can get data out (but have no way of adding). On some, the access is restricted, i.e. Youtube Music does not seem to support Album information (which could make matching songs difficult). On several more audiophile services, i.e. Tidal, Qoboz, access is full and bidirectional. Even Spotify gives you full access to your information.
It could be useful information for picking a service. I like the concept of Amazon Music, but without an API, would be a major pain to get data into it (or out of it). I know there are other services, but I expect the limitations are similar.
https://soundiiz.com/features
It shows you the access Soundiiz has to YOUR playlists on different music services. On some, it is read only. That means you can get data out (but have no way of adding). On some, the access is restricted, i.e. Youtube Music does not seem to support Album information (which could make matching songs difficult). On several more audiophile services, i.e. Tidal, Qoboz, access is full and bidirectional. Even Spotify gives you full access to your information.
It could be useful information for picking a service. I like the concept of Amazon Music, but without an API, would be a major pain to get data into it (or out of it). I know there are other services, but I expect the limitations are similar.