You can boot Windows native on a Mac now you know, and as far as the network is concerned it is a Windows PC.
This was my suggestion, but my son tells me that they say some of the software required doesn’t run that well on Windows native.
Do you suppose that is factual, or in error? Is there software, (for business applications) that might not run on Windows native?
Double boot is annoying.
Buy 2 PCs. The school uses PC so buy PC for school.
Post school get a MAC.
Also buy up cheap tablets when needed, such as dedicated internet browsing. Multi computer ownership has benefits but not all at once so they are not all obsolete at once.