My two cents on AMD graphics. I have got it to work (3D applications, media encoder and decoder) with discrete GPU RX Vega 56 plus iGPUs RX Vega 11 in 2400G, RX Vega 6 in 5300U, RX Vega 7 in 5600G, and RX Vega 8 in 5700G… So many Vega lol
btw I may give R9 290 a try if it still works and I have the time 