It's X11 but whenever (tiling) window managers are mentioned, I feel a strong urge to mention Herbstluftwm [0]. It's more manual than the automatic splitting most tiling WMs do but I really enjoy how easy it is to split/tab using the keyboard in Herbstluftwm.
What I hate most about Spotify is: after meticulously adding songs to a queue, accidentally tapping a song near the end of the queue just to see the entire queue being cleared up to that song.
It’s just mind-boggling and creates some sort of anxiety during using the app.
[0]: https://retroremake.co/pages/superstation%E1%B5%92%E2%81%BF%...