Can you recommend a Bluetooth dongle that support s version 5.3, not too terribly expensive and available in Europe? Preferably works out of the box on Ubuntu LTS, but compiling my own kernel is also acceptable.
For context my last attempt ended with one that only works with Windows 10, when no other Bluetooth receiver is connected. Cherry on top it needs troubleshooting wizard after each reboot.
I believe there are m.2 to pcie adapter boards. It’ll feel weird putting laptop components in a desktop, but the important thing will be that it works.
You know what is weird selling desktop components which are laptop components with an adapter https://www.asus.com/networking-iot-servers/adapters/all-series/pce-ax1800/