Updating Firmware

So I switched to Arch full time last month, and that got me thinking: How do I update the firmware of my devices?

I know about fwupd, however from my understanding not all vendors support linux.

In this case, I have an Asus motherboard, and after brief searching I seemed to come across results that would point that Asus isn't one of the manufacturers who support firmware updates from linux.

That being said, how do you all update your firmware if you know the vendor doesn't support linux?

I can't imagine that I could update the firmware from QEMU, and nor do I want to try. I don't want to have windows installed on my system at all. So then I thought, can I go about this via Windows to Go? And that is the solution I am going to investigate trying...