The devs advise that there are still some problems with suspend / resume while 3D acceleration is in use. I imagine this should be fixed before 5.9 is released.
AFAIK there is no Bluetooth support since 5.6, they dropped the entire subsystem. Found that out when I wanted to use a wireless mouse with my Macbook Air... other than that and the embedded WiFi it works fine, they've done a great job.
