I have laptop with ryzen 2500u and my gpu is vega 8. Unfortunately there's no any working Android os. I tried remix, phoenix, bliss... many of them didn't boot or didn't load gpu. Do you know any android working on vega 8 gpu?
I tried many emulators but because of my cpu it doesn't perform well. I want Android for gaming so I need a proper os. I was using without any problem with my intel pc but somehow os makers simply ignore to add amd gpu drivers.
If you still can't get it to work than I suggest you open an Online AMD SERVICE REQUEST (Official AMD SUPPORT) from here and ask them if your Ryzen laptop APU is compatible with Android emulators from here: https://www.amd.com/en/support/contact-email-form
This is as far as I can go as far as suggestions go.