Proprietary Firmware and Drivers?

Hi, Which hardware needs non-free licensed or has no source code firmware and/or drivers? I greatly prefer hardware that has no proprietary firmware :). My dream love is 100% libre software stack and firmware :D.

I guess the wifi and bluetooth firmware is non-free, not sure if the driver is non-free? need to research more. I end up, giving up and using wifi,bt anyway but libre firmware and driver is a great preference :).

What about the microcontroller for the keyboard and lora, Is all the source code firmware on it going to be published under a libre software compatible license?

Thank you very much for your efforts! :slight_smile: