I dont know if this is what you were asking for but its this oneThe BIOS switch should be located near where the crossfire fingers are located. I know that's where it should be for the Sapphire Nitro range of GPU's and has been there for the RTX series of Strix GPU's by Asus. Which version of the Strix Vega 56 do you have? Got a link?
Yes it doesTitle asks the question, does strix vega 56 have an bios switch? last time i checked i couldnt find one, but i could be wrong since some other strix cards have dual bios