A recent one seems to work with VRR: https://www.reddit.com/r/linux_gaming/comments/1pkdfcm/ugree...
DP1.4 though, so you're still going to need compression.
Wow that's awesome work in that post! I've also bought a few things from UGreen now, they're great.
Yup this works but there's as of yet no HBR13.5 or better input so you're not getting full hdmi 2.1 equivalent. But if you don't care about 24 bits per pixel DSC then you can have an otherwise flawless 4k120hz experience.
https://trychen.com/feature/video-bandwidth