Pi 4 with x64 kali Bluetooth question

Hi all,

Ik have just installed the latest kali version on the pi 4.
I followed serveral instruction to get bluetooth running, all succeed.
Now when playing with it I am a bit confused.

with hcitool scan I only find one device, while there is a lot more. the same for btscanner and bluelog.
while with gui bluetooth devices I find almost all BT devices in my house.

But I can't find already paired devices, as example my phone and a sony bt speaker are connected and playing music, I can't find them in a BT scan.
When I allow BT pairing on the speaker I can find it, when I have the mac adress you can do some tests with it. But I like to scan all arond me.

So the questions is how to scan properly all the BT devices in range of the pi4?

thanks

Jeroen

That I would like to know as well.
Have you found an answer to this problem yet?

Me too, there is no Bluetooth adapter under /dev, is there a solution?

I tried the Manjaro-ARM image which has bluetooth support and then enabled the BlackArch-repo.