AMD Ryzen 6000 is DisplayPort 2.0-certified, as are some MediaTek and RealTek chipsets, DisplayPort cables, and docks, but that's about it. We don't know of any DisplayPort 2.0 monitors readily ...

DisplayPort 2.0 nearly triples its usable bandwidth from 25.92Gbps for DP 1.4 to fully 77.37Gbps courtesy of a combination of increasing raw bandwidth to 80Gbps and a big step in link efficiency.