Thats interesting, I am using lineage as well (oneplus 6t) and do have the app com.android.devicelockcontroller. This could be some junk added when I enable the gapps magisk module which I generaly keep dissabled though.

Take a look at rooting it, maybe you can find some way to use it to stop it from just being e-waste. https://npjohnson.github.io/Spotify-Car-Thing-Root/