This is totally up my alley. I really liked the CRG9 but wanted higher resolution. If it could do PbP with HDR and VRR that would be just the cherry on top.
My only concern is that my 4090 is outdated out of the gate because it only has DP 1.4. I am considering returning it and buying again when I have a display that could make use of its speed and have confirmed that future displays aren't going to be a problem.