this, I wanted to make a little utility for getting lyrics for whatever song is currently playing on spotify[1] and ran into the issue for getting the song name without using the API since that's just inconvenient for the end user. The most popular such project does go that way though.[2]
I ended up writing a small library that does that locally cross-platform by using the metadata from the app.[3] The approach is probably not as robust as the API, but much faster and works well.