I'm starting to think it is.
A few days ago I got a message on my original cracked spotify (That I originally downloaded from ACMarket a few years ago on another phone, and have been manually reworking the code to make it compatible with my phone ever since, even with my very basic coding skills it worked for years), that the version i'm using is outdated and I needed to update it. The next day it stopped working entirely.
I then turned to Spotube. Sure, it works, but the exasperatingly long loading times, and the YT Music system really doesn't work all that well; For some more obscure songs, the versions that Spotube finds are totally different and it's really jarring to for example, listen to live versions when all you've ever listened to are clean studio recordings.
I then tried xManager 5.8, and downloaded the latest patch from there, but nothing. My playlists appear empty, songs don't play and the app refuses to even emit sound. Older versions behave exactly the same.
Are there any other alternatives out there on the same vein as modded spotify instead of a mix of pulling audio from one API and lyrics/info from another?