(Answering this with the context of personal, not work, because work is a Macbook and there's no option to choose) For me the only real reason is hardware comp

(Answering this with the context of personal, not work, because work is a Macbook and there's no option to choose) For me the only real reason is hardware compatibility. I've had a couple of laptops with some sort of Linux by now and there's always quirks that make me not able to rely on it as a daily driver. My current personal laptop is a Lenovo Ideapad 720s, and I dual boot Win10 and Manjaro. In every Linux flavor I tried on this, it consistently crashes whenever I close the lid to put it to standby/suspend and reopen it. Additionally, it randomly freezes when I drive the cpu too hard. This really makes it such that I only boot into the Linux side when I want to do hobby dev work; and use the Windows side for regular household stuff (email, pay bills, etc.). Admittedly maybe it's my fault that I don't buy a laptop with better Linux compatibility, like one that comes built-in with Linux such as the Dell XPS 13 Developer Edition.