The HDMI Forum, responsible for the HDMI specification, continues to stonewall open source. Valve’s Steam Machine theoretically supports HDMI 2.1, but the mini-PC is software-limited to HDMI 2.0. As a result, more than 60 frames per second at 4K resolution are only possible with limitations.
Oh yeah, and and they would mostly be terrible, except one brand no one has ever heard of but, it’s apparently a big name in China, and called something like Zloks would inexplicably be the king of that particular niche product.