Questions about Conceptronic Adapter Bluetooth Bluetooth Adapter 5.1 NanoUSB 10-20m black

Yes, it works perfectly. Even without a driver. You should activate Bluetooth directly from the settings and not from the task bar. If you have done this and it still does not work, then run a Windows troubleshooting and if it does not find anything, then your product is probably defective.

I don't know Linux, but I do know that Linux can do a lot, if you know what you're doing. For the BT adapter, according to the Conceptronic site, they say: <<Supported operating systems Windows 7, 8.1, 10, 11>>. They don't mention Linux at all, just Windows Plug&Play. Perhaps a 'Linux kingpin' will be able to bridge the gap...

I don't think the TV recognises the USB dongle, I would use an aux to bluetooth adapter, e.g.: 4smarts B9 (transmitter) Then the TV will think it has headphones connected, that will definitely work. The quality should not be affected, I have no idea about the delay but there is a setting on most TV's where you can compensate for the delay.

The BT transmitter goes really far, in open terrain the 100m is quite realistic. With walls, maybe 20m.

Basically, bluetooth dongels don't care which USB you have. bluetooth is so slow that it doesn't matter which standard it is. And all USB generations are backwards compatible.

No, that's not a problem, Bluetooth 5.1 can handle the fact that there are several such devices in the immediate vicinity. This also works with notebooks with built-in Bluetooth chips or smartphones.

USB-A.