Can I use my iMac as a display to my PC?
I would like to use my iMac running Catalina 10.15.7 with retinal display as a target display to my Windows PC. I have made all the connections through Thunderbolt 2 on iMac side and Thunderbolt 3 on PC with an Apple adaptor in between. iMac is not detecting the connection. Tried Fn2+Cmnd or Fn+Fn2+Cmnd with no success. Tried lowering the resolution on iMac and still no success.