@sesivany I restarted Pulseaudio (after restarting Bluetooth earlier) and got a few minutes to test it out on my Fedora 29 laptop:
1. LDAC from laptop to FiiO Btr3.
2. LDAC from laptop to Sony XM3 Headphones.
3. AptX HD from phone (OnePlus 6T) to laptop. Not sure why it's AptX HD instead of LDAC, but it's fantastic enough too. 😉
This is nice.