> For anyone hosting a product on servers (almost everything web related)... there IS something special about linux: It's where your product is going to run in production.

I've been at several corporations and companies where the target OS doesn't matter in the least, and I've had multiple projects on my own where it was the same.

Most of development is so far removed from actual hardware and actual OS, it doesn't matter if your backend is developed on Mac and runs on Linux.