In a web browser on your computer, go to www.aka.ms/phonelinkQRC and scan the QR code. Tap View Permissions and enable the permissions the app requests (Phone, SMS ...
There's no need to buy a separate device.
In a pinch for extra screen space on your PC but don't have a second display? Use this simple USB trick to turn your Android ...
How to turn your Pixel phone into a PC - with the new Android Desktop Mode ...