“Agreed, would be nice to have the ability to flash it via a bootable media.”
You can use a utility called Rufus and a generic win10 install iso to create a “windows-to-go” install which boots and runs from usb. You don’t need a windows license, it will run well enough and just disables some personalization stuff like setting the desktop wallpaper. It’s annoying and overkill and you shouldn’t need to do that, but it works and you can do it right now for free from public downloads. I installed to the framework 1T usbc module since it’s read/write specs are better than any thumb drive.
Update, I only just now discovered: