There is a TON of hardware and software that is Windows-only. A lot of it pretty high end. I bought my Windows system as a gaming system, which is really the only game in town if you hate console gaming. It's been a trip. Had to reinstall the whole thing.
No doubt! But I was surprised specifically at high end audio production systems that are Windows-only, as that particular industry tends to lean pretty Mac in general.
If you must use Word, Excel and PowerPoint, you're at the mercy of what trends Microsoft perceives.