The September Patch Tuesday update is causing audio problems with certain USB devices, but you may be able to resolve it yourself.
If your speaker's audio quality is subpar, there are a host of Developer Options settings that can potentially fix the issue.
I have had so many weird problems with Win11 and Bluetooth... Unpair, reboot, repair. If that doesn't work, check Windows update / additional updates to see if there's a driver update. If that doesn't ...