lclc98·5년 전·discussNews are providing that information for scraping though, viewing source of any of those sites and look into the "og" or "twitter" meta tags, they are designed to be used that way.
lclc98·6년 전·discussSpecs[1] don't say which version of HDMI but under "Supported Rendering Format" it does mention HDMI 4k support.[1] https://www.amd.com/en/products/graphics/amd-radeon-rx-6800