John,
Or should I say Saint John, I’m unable to factory default my iPhone because I’m unable to access the internet to turn off Find My iPhone which is one of the first steps in this process.
I have my iPhone X linked to my MacBook Pro via a USB-C to Lighting cable.
I’m running macOS Catalina version 10.15.7 (19H2) on my MacBook Pro, iOS 14.1 on my iPhone X.
Paul