I've tried AVRCP v1.5 and 1.6, none of which display music library content in my car when using Poweramp, only when using the Samsung Music app.
If I understand you correctly, the full AVRCP API on my phone is only available to Samsung, so Poweramp will never be able to utilise it fully? If so, that seems like a weird restriction. 🤔
Basically, my car and my phone support a feature, but only a Samsung app can use it?
Thanks for your replies. 👍