What I love about Spotify and think shows that their engineering culture is really solid, is their progressive web app. I only use Ubuntu on my different computers, and my first task after a fresh install is to log into Spotify and save their web app on my machine. It just works: the icon appears in my favourites, the app renders really nicely in a native-like window, etc. It is by far the best progressive web app experience I have had. I totally forget that it's just a website with the browser UI switched off.