First, the linked documentation provides no information about where to get the Apple Devices App. It turns out, it's only available from the Microsoft App Store. Fair enough, but odd that the documentation never says that. Second concern: yikes, this synchronization app is 188 Mb in size. But whatever, I have tons of storage on my PC, so let's proceed.
The final and biggest issue: the app simply never recognizes my phone. The phone is unlocked and has trusted the computer. It shows up in Windows Explorer as a storage device (significantly hobbled by Apple's needless file system obfuscation, but that's not new). The Apple Devices App never stops saying "Connect a device to proceed."
All told, a typical Apple software experience.
If Android weren't so awful, I'd be much happier. The way Android devices appear as just a standard storage device with a normal file system is so much easier to deal with.