Is there a way to disable internal Bluetooth on a Vero 4k+?
You can simply not enable it under the Networking section of My OSMC.
I intend to use an external.bluetooth adapter, wouldn’t your suggestion disable both?
Are you planning to use the internal WiFi adapter however?
I use the LAN connection, so WiFi is not important (or used) and may be disabled if required to disable the Bluetooth.
I don’t think you need to disable WiFi too.
You can probably just do:
sudo rm /lib/systemd/system/sdio-bt-firmware.path
but keep in mind that future updates may reinstate this.