Aren't most phone screens "HDR" these days, and for years now ? (And Apple had wide gamut with excellent OS compatibility on computers for even longer ?) Yes,

Aren't most phone screens "HDR" these days, and for years now ? (And Apple had wide gamut with excellent OS compatibility on computers for even longer ?) Yes, but why existing formats are like this, we have been through quite a lot of new especially video formats in recent years...