I just got confirmed for Zwift desktop and loaded game onto pc. I do not have an ANT+ USB 2 dongle for the pc (yet), My Galaxy reads my Kickr output, is there any way I can use the phone to interact with Zwift?
No you’d need an ANT+ dongle, even the folks on here that do some interesting things with their ANT+ sensors use 2 ANT+ sensors. One to receive whatever the initial input and one to re-broadcast the signal to Zwift.
Also since you haven’t got your dongle yet, keep in mind the distance the dongle will be from your PC and consider getting a USB extension cable to save yourself any headaches from a bad signal.