Fully update the system, restart, install blueman, run blueman-manager, right click on the bluetooth device, select sound profile, try different codecs. Some codecs need more bandwidth than others.

The stability of the bluetooth connection depends on the strength of the bluetooth transmitter and the amount of interference there exists nearby. If you’re using a Bluetooth mouse or keyboard, try to switch to RF or wired.

If you’re using the default bluetooth connection from settings, maybe try installing blueman instead.