DisplayPort 2.1 has a serious issue with UHBR-certified cables — it could explain Nvidia sticking with DP 1.4 on RTX 40-series
by from Latest from Tom's Hardware on (#6MWN1)
DisplayPort 2.1 is the most powerful video connection standard on the planet, but it has several issues that are seriously affecting its adoption. Specifically, maximum cable length for DP80 certified cables is incredibly short right now.