Contact HP support, there are no drivers available directly from AMD for the product.
From HP Support for the HP 15-BW091AX driver download; HP Notebook - 15-bw091ax - Driver Downloads | HP® Customer Support .
HP does have an updated Graphics Drivers for your APU (Bristol Ridge):
AMD High-Definition Graphics Driver - Bristol Ridge
AMD High-Definition Graphics Driver - Bristol Ridge / Stoney Ridge (Windows 10 v1803)
Also has an updated BIOS for your laptop: