Camera RAW HDR does not look the same when opening in Photoshop

Supposedly there is or was a check box in Photoshop preferences in Technology Previews to enable Precise Color Management for HDR Display, but this option isn't even available to me. I have dual monitors, both with HDR enabled. My images look fantastic in ACR, but they always look horrible when importing to Photoshop. I have tried to uninstall Photoshop and reinstall it, but the option to enable HDR isn't available. Does anyone have a workaround for this?