[fragmede]

Three things stick out on that list as things non-engineers care about.

Lyrics; people listen to music and then enjoy singing along. This little thing called karaoke supports a whole industry, for engineers and non-engineers alike, so people can get together and sing songs.

Redesigning the client. New interfaces are scary and different for non-engineers.

Can't add third party songs to cloud library. Non-engineers understand that some licensing nonsense means they can't get Taylor Swift on their Spotify, and then... just don't use Spotify, because all their music is on the Apple.

I'm not including "native client to bundled browser" as something non-engineers care about, but people do ask "why does the new version of $program make my laptop fans get all loud?"