The capabilities of the Mobile Connect app depend on the phone you're it using with.  Android allows more functionality than iOS because iOS has more restrictions around what apps can do in the interest of security (at a tradeoff in available functionality), so you won't be able to use as many features of Mobile Connect with iOS.  But if you want to see what you can do, just install the Mobile Connect app on your XPS and it will walk you through pairing it to your phones.  You can only be connected to one phone at a time, but you can pair multiple phones if you want and then switch between them as desired.

However, your topic title asked about networking an XPS with a MacBook, not a phone.  Mobile Connect at least as of this writing only works with phones, not other laptops.  In terms of "networking" an XPS with a MacBook, it depends on what you mean by "networking".  Windows PC and Macs can communicate with each other just fine over a network, so what specific functionality are you looking for?  If you just want to share files, then you can set up a shared folder on either system (or both systems), and the other system will be able to connect to it.  This has been possible for at least 15 years now, ever since Macs added support for the SMB sharing protocol, which allows them to connect to Windows shared folders and host shared folders that Windows systems can access.  This Apple article shows how to connect to a Windows shared folder and how to share a folder from your Mac.

If you're looking for a very simplified AirDrop-style solution, I don't know of any offhand, but that doesn't mean much because I haven't looked for any.  I prefer having shared folders because even though it takes a bit more time to set up in the beginning, it offers a lot more overall functionality than AirDrop.