

These are the dongles that came with the keyboards, so they’re paired out-of-the-box (although I have also used the process for re-pairing them). They are just connected to a USB port on the computer, so not really permanent, but I do leave them connected. Not both at the same time, but each in turn. Hope that answers your question, but I’m not 100% sure I understood it.
I’m using ALVR with a Pico 4 headset on Linux, and it’s pretty solid. I’m not playing a ton of VR games, but so far I haven’t found anything that doesn’t work. It has some quirks, but it works pretty well. I’m very happy with it.