[Dylan16807]

Ideal HDR goes up to 10000 nits or higher. It would be ridiculous to put SDR white anywhere near that level.

And there is no need to cripple anything. Brightness adjustment can/should let you put SDR white all the way up to the max full-screen brightness. If a manufacturer cripples that it's not HDR's fault.

But it's also important to note that "max full-screen brightness" is often a lot less than maximum spot brightness.