I don’t have a question but more of a suggestion and recommendation. If you find yourself switching from Spotify to Apple Music, use your computer to do it and use TuneMyMusic. It was $4.50 one time charge or monthly if you need that option. But it was so easy to use.
Also, if your “Liked” Playlist doesn’t move over, you have to use the desktop Spotify app, CTRL + A the Liked Playlist, add a new one and rename it. Be mindful this option doesn’t exist in Apple Music, so you would have to add future liked songs to this specific playlist after you move it over. I hope this helps someone!
The last time I had to do that, I used songshift (iOS app), worked really well for me