Hi guys, basically as the title says I want to make external SSD drive with "Windows to Go" for the stuff that I really need Windows for unfortunately (proprietary CAD software) but there is no software for making this on Linux that I can find
I can confirm M.2 to PCIe adapters work for booting Windows. Had both my Linux drive and Windows drive each in a separate one when I used to dual boot. Then I would swap out which adapter was in the computer to switch OS.
I haven't plugged the Windows one in in a loooong time, but wanted to mention the option since it would do what you want.