I was discussing this elsewhere and my impression was Vega wont be fully supported on the Linux side till January which is a bit disappointing.   If you know what you are doing maybe it can be pieced together before then and isnt the bios flash enforcement done via drivers so Linux will be superior to windows eventually.  Latest drivers stop the 64 to 56 flash ?  Right now its far less hassle to just stick with the evil empire, at least for me it is.   Im surprised if there are vast farms of vegas because it doesnt it cost alot more to buy