Help Needed: Convincing IT to Replace My Windows Computer with a Mac

Hey! I'm in marketing and have been using Macs throughout my entire professional career. Recently, I started a new position at a large corp and they shipped me a Windows computer. I asked my manager if I could swap my work Windows computer for a Mac, and she was cool with it. However, IT is asking me for a business use case (or multiple) to justify the switch.

I want to give a solid case to increase my chances of getting it approved. Any ideas or tips on what I could present as reasons for the switch? What kinds of use cases do you think would help?

Have any of you faced a similar situation? What worked for you? I’d love to hear your thoughts!

Thanks in advance!