Mac Studio doesn't recognize monitors' HDR or properly output to it

I have a new Mac Studio and am having troubles with it and my monitors' HDR. How do I force it to recognize and properly output an HDR signal? Before I got the Mac Studio I had both of these monitors connected to a PC with an Nvidia GTX 1080 Ti which was using them at their full resolution, frame rate, and HDR - so they definitely do actually support it. It connected to the left monitor via DisplayPort and the right via HDMI. My **right monitor** is the ViewSonic VP2785 (4K60, HDR, AdobeRGB). It has DisplayPort and HDMI inputs. When I connect it via HDMI, I do not get an HDR option in Settings. I can set resolution (which is "More Space" i.e. native), color profile (AdobeRGB), refresh rate (60 Hz), and rotation (standard). When I connect it with a USB-C/DP to DisplayPort 1.4 cable, I get and use the same options. However, when connected this way, it frequently doesn't wake up when the system wakes up, so I prefer the HDMI option. HDR never shows up. My **left monitor** is the ViewSonic VP2786 (4K60, HDR, AdobeRGB). It has USB-C/DP, DisplayPort, and HDMI inputs. When I connect it with a USB-C/DP to DisplayPort 1.4 cable, I get and set all the same options as above, but I *do* get an HDR option. However, when I turn it on, I get a very washed out display - not HDR. When playing HDR content, I still get the usual dirty contrast areas where the brightness saturates non-HDR colorspaces and gets clipped. When I connect it with the native USB-C connector (with a thunderbolt-compatible cable) I get the same as above, but as with the previous one it often fails to wake when the system wakes. **How do I get it to recognize and properly output HDR?** How do I figure out why it's not working in the first place? Some other notes: - This behavior was the same on 15.0 and 15.0.1. - When it "fails to wake", OS X agrees and has moved all of my windows/spaces to the other monitor. When I power-cycle the monitor OS X will then move all my windows/spaces back to where they were across the extended displays. System Profiler display info: Chipset Model: Apple M2 Max Type: GPU Bus: Built-In Total Number of Cores: 30 Vendor: Apple (0x106b) Metal Support: Metal 3 Displays: VP2786-4K: Resolution: 3840 x 2160 (2160p/4K UHD 1 - Ultra High Definition) UI Looks like: 3840 x 2160 @ 60.00Hz Main Display: Yes Mirror: Off Online: Yes Rotation: Supported VP2785 SERIES: Resolution: 3840 x 2160 (2160p/4K UHD 1 - Ultra High Definition) UI Looks like: 3840 x 2160 @ 60.00Hz Mirror: Off Online: Yes Rotation: Supported