If you can put up with wide curved panels the 49" variant of the Samsung Odyssey Neo G9 from 2021 offered HDR2000 as a 5120x1440 display (basically 2x27" 2560x1440).

I was heartbroken all of the flat panel normal aspect monitors in that family since have had other severe tradeoffs and it's only the curved ultrawides that were given the better specs.