Yes, absolutely a Windows user, and MCSE from almost 30 years ago. And I have multiple iPad Pro's
And why even reply to such an old thread...
And this is a Windows forum. And my comment was spot on, which tells me you don't understand even the basics of the technology involved. Have I ever tried to get iOS device camera working as webcam inside Windows... no, Apple walled garden, wasn't practical previously and Apple didn't enable such with their drivers/iOS, and Apple's device driver situation with MS Windows is a mess (iTunes deprecated/effectively abandoned, without a proper replacement that isn't either a security nightmare or appear written by interns)... totally not worth the hassle for me personally.
So, one typically must run a 3rd party app (like NDI) on an iOS device to output its camera video visible to the Windows operating system. And knowing WiFi isn't reliable, I'd only try that using a iOS (lightning or USB-C) Ethernet adapter (which I have)