Streaming to LibreELEC via Bluetooth using aptx apt-x aac?

Installed LibreELEC and it works really well. I've connected my mobile via bluetooth and can stream music, which is pretty cool, but it is using SBC. I was wondering if I could use better codecs like AAC or aptx. My phone does support those. Does the bluetooth dongle have an impact on this or is it something on the software side?

I was stupid. It is not working. I have other Bluetooth speakers it was playing through... Doh. I'll open another topic...