My laptop has Ryzen 5 2500u with Vega 8 graphics. PlayReady 3.0 was promised on Vega in 2018 and still no update. Polaris and navi already got it. As a result I can't watch HDR videos on Netflix.
Looks like, the answer is negative. The same is for 6000 series.
For some reason, AMD doesn't want us to be able to watch HDR legally.