Office doesn’t have native Linux binaries. You either have to use a VM or Wine. You’ll find most people recommend a VM. There are Office web apps, but they’re not as robust as the Windows native offerings. Microsoft doesn’t really want to offer Office on Linux. Stick with Windows for the remainder of your education. Once you’ve finished, you can sink time into learning Linux.
It’s a version of Windows 10 targeted at businesses that choose to run Windows on “Internet of Things” devices. It is a “Long Term Service Channel” release that receives primarily security updates (little to no features updates), because the devices that will use this need to be in service for a very long time. Enterprise Windows typically activates with a licensing server that’s subscription based. But you can use the “Microsoft Activation Scripts” to activate it as if it were a retail copy you pick up the store.