Bluetooth not working often in 20.04

This device, TP-Link UB400, works fine with Ubuntu 20.10 (plug & play out of the box) with kernel 5.8.0-38.

The TP-Link UB400 Nano works fine on Ubuntu 20.04.2 LTS kernel 5.8.0-43, plug & play,Bluetooth headset also working without any issue, (install blueman, if not)

For anybody that might arrive here, the problem with bluetooth in linux arrives in the combination with a random device which I posted about in this question, combined with pulseaudio which is just terrible in general, specially for bluetooth related concerns.

Being in Ubuntu 21.04 and 21.10 for a while, pulseaudio still fails to work properly, I've been testing Pipewire for more than 6 months at it works out of the box with every device and there's almost no bugs.

I will recommend anybody having bluetooth trouble that give Pipewire an opportunity.