Where’s the option for your own music?

There used to be a feature where you could select music from your library and add it to a Memory movie, but when iOS 15 came out, you can only add music from Apple Music and nothing else. Memories used to be one of my favourite things in the photos app, as I could take a look back at my past, but now I hate it. If you need to get Apple Music in order to add songs, that would suck because I am already subscribed to Spotify and I don’t plan on switching. As well, I don’t like the music options they included. It would be nice to see Spotify integration, so then I don’t have to pay for two different music streaming services.