They push out a mobile app update every week with either no changes, or changes to things I don't care about. They removed push-to-preview. They refuse to add custom song start and end times. They focus incessantly on podcasts. Their playlist management is a joke. They get the most embarrassing things wrong, like failing to understand that two artists with the same name are not the same artist, or that a song in my Discover Weekly is just a re-release of a song already in my library. Until recently, their random shuffle kept getting stuck in a loop of ~100 songs. There is no modification history, so if I accidentally remove a song from a playlist or my library, I get a snackbar saying "Removed from library" but it won't tell me what, and there's no way to find out. Their song queue system is utterly anemic. The "Home" button also serves as a kind of pseudo "back button" but with no obvious rules to understand exactly how navigation is going to occur.
The fact that so many third party Spotify integrations exists, each tackling a different deficiency in the Spotify app itself speaks volumes about what Spotify's priorities are. Spotify is lucky that their library is massive and that their recommendations are good (for me anyway. My friend and my mother separately have had astoundingly awful experiences with the recommendation system despite years of trying), or there's be no love lost in moving elsewhere.