I had a similar problem with my desktop, via a USB Bluetooth adapter. In my case I have both a Logitech Bluetooth keyboard and mouse, while the desktop sound was connected via Bluetooth to an Amazon Echo device.
The way to solve this was to replace my old Bluetooth 4.0 USB adapter with a newer Bluetooth 5.0 USB adapter. The problem disappeared and never came back.
Bluetooth 5.0 has a wider bandwidth and can more easily work with Audio and HID devices.
In that thread people are using built-in Bluetooth adapters so I am afraid they will never completely solve their problems.
And by the way, the numbers "1 2 3" on the Logitech mouse are not "bands" as some on that thread believe. They are just different pairing profiles.
The way to solve this was to replace my old Bluetooth 4.0 USB adapter with a newer Bluetooth 5.0 USB adapter. The problem disappeared and never came back.
Bluetooth 5.0 has a wider bandwidth and can more easily work with Audio and HID devices.
In that thread people are using built-in Bluetooth adapters so I am afraid they will never completely solve their problems.
And by the way, the numbers "1 2 3" on the Logitech mouse are not "bands" as some on that thread believe. They are just different pairing profiles.