[perryizgr8]

Android app: It works fine on my S10. It can glitch out sometimes, but that is rare. I admit I almost never use the offline functions. So maybe that part of the app is not well-made.

Web app: I don't use the web app.

Mac/Windows app: I use these and they work flawlessly for me. Maybe you can try this instead of the web player. Web apps are often trash, so I won't be surprised if Spotify's was too.