My work laptop just got replaced, and what’s great is the dock that came with it. It only connects to my laptop thru a USB C. So. Now I unhook my laptop, and plug my phone into it, which uses Dex. It’s like Samsung’s own desktop OS. And I can use my big screens and keyboard and mouse
I also make sure my phone isn’t using the network cable plugged into it and only use my own internet. I don’t think it’d let me anyways