The HDMI Forum rejected AMD's open source HDMI 2.1 implementation

https://discuss.tchncs.de/post/11743231

The HDMI Forum rejected AMD's open source HDMI 2.1 implementation - tchncs

Sounds like hdmi Forum are a bunch of twats. Time for a new format.
DisplayPort already exists
Hard to find on non-pc gear, but that’s a fair point
It’s usually easy enough to adapt it as needed. It can typically send signals compatible with HDMI and DVI-D just fine.
The passive adapters that connect to DP++ ports probably still rely on this HDMI specific driver/firmware support for these features.