There IS a workaround consumers can do. It involves flashing a REALLY sketchy firmware to one of the mainstream dongles. And it still isn’t true HDMI 2.1. It just gets you VRR and enough HDR that I don’t know the difference.
But probably not something a company like Valve wants to actively sell. Expect hundreds of variants on aliexpress but your country may vary as to whether that is cost effective to purchase.
There are still handshake issues with that.
There IS a workaround consumers can do. It involves flashing a REALLY sketchy firmware to one of the mainstream dongles. And it still isn’t true HDMI 2.1. It just gets you VRR and enough HDR that I don’t know the difference.
But probably not something a company like Valve wants to actively sell. Expect hundreds of variants on aliexpress but your country may vary as to whether that is cost effective to purchase.