I found instructions on how to install drivers for AMD graphics cards on AMD's website. However, I can't find the model series for my graphics card even after using this websites: https://devicehunt.com. I put in 1002 as the Vendor ID and put 98E4 for the Device ID but all I get is the device name as Stoney [Radeon R2/R3/R4/R5 Graphics]. This doesn't match any of the options on this website: https://www.amd.com/en/support.
Output from " lspci -nn | grep -E 'VGA|Display' ":
00:01.0 VGA compatible controller : Advanced Micro Devices, Inc. [AMD/ATI] Device [1002:98e4] (rev c4)