Fix bluetooth headphones that crackle or jitter on Debian Linux with pulseaudio.
Symptoms:
- Bluetooth headphones were jittery and produced crackled audio on Debian.
 - However bluetooth speakers with the same machine had no problem.
 - Headphones were also fine on other devices. 🤔
 - Turns out the bluetooth mouse (Logitech) when moved worsened the interference.
 
Solution:
- Install pulse audio system icon (sudo apt install pulseaudio) and the gui (apt install (sudo apt install pavucontrol).
 - In the Configuration tab of the pulse audio app, changing the codec for the headphones from LDAC (high quality) to SBC XQ 552kbps made the issue 95% better without any noticeable drop in audio quality.
 

Seems that Sony Headphones / Logitech Mouse quite frequently cause problems when used together.
References:
https://itslinuxfoss.com/install-pulseaudio-ubuntu-22-04/
https://forums.linuxmint.com/viewtopic.php?t=399161