Nvidia-drm connector properties limited when in multi-user mode

I have a project that I ported from Raspberry pi 4 where I could set connector, crtc, plane properties from userspace. I have managed to compile and get it running on Ubuntu 22.04. In order to even get it working I have to be in multi-user mode to allow access to /dev/dri/card0 or /dev/dri/card1 otherwise Xorg is in control of these devices.

I have nvidia driver 515.65.01 installed and nvidia-drm working.

I can dump the drm properties with https://github.com/ascent12/drm_info but notice for the nvidia drm driver these are the only connector properties exposed to userspace:

├───Connectors
│   ├───Connector 0
│   │   ├───Object ID: 74
│   │   ├───Type: DisplayPort
│   │   ├───Status: disconnected
│   │   ├───Encoders: {0}
│   │   └───Properties
│   │       ├───"EDID" (immutable): blob = 0
│   │       ├───"DPMS": enum {On, Standby, Suspend, Off} = On
│   │       ├───"link-status": enum {Good, Bad} = Good
│   │       ├───"non-desktop" (immutable): range [0, 1] = 0
│   │       ├───"TILE" (immutable): blob = 0
│   │       └───"CRTC_ID" (atomic): object CRTC = 0

Colorspace, Broadcast RGB, max bpc, HDR metadata properties are missing. Additionally no CRTC_ID is assigned. Is this all that the proprietary driver exposes of the DRM layer?

The i915 driver on the other hand exposes these properties to userspace:

───Connectors
│   └───Connector 0
│       ├───Object ID: 95
│       ├───Type: eDP
│       ├───Status: connected
│       ├───Physical size: 380x210 mm
│       ├───Subpixel: unknown
│       ├───Encoders: {0}
│       ├───Modes
│       │   └───1920x1080@60.01 preferred driver nhsync nvsync 
│       └───Properties
│           ├───"EDID" (immutable): blob = 103
│           ├───"DPMS": enum {On, Standby, Suspend, Off} = On
│           ├───"link-status": enum {Good, Bad} = Good
│           ├───"non-desktop" (immutable): range [0, 1] = 0
│           ├───"TILE" (immutable): blob = 0
│           ├───"CRTC_ID" (atomic): object CRTC = 51
│           ├───"panel orientation" (immutable): enum {Normal, Upside Down, Left
 Side Up, Right Side Up} = Normal
│           ├───"Broadcast RGB": enum {Automatic, Full, Limited 16:235} = Automa
tic
│           ├───"max bpc": range [6, 12] = 12
│           ├───"Colorspace": enum {Default, RGB_Wide_Gamut_Fixed_Point, RGB_Wid
e_Gamut_Floating_Point, opRGB, DCI-P3_RGB_D65, BT2020_RGB, BT601_YCC, BT709_YCC,
 XVYCC_601, XVYCC_709, SYCC_601, opYCC_601, BT2020_CYCC, BT2020_YCC} = Default
│           └───"scaling mode": enum {Full, Center, Full aspect} = Full aspect

For my software to work properly I need to have userspace access to these properties. Unfortunately the intel gpu is only attached to the laptop display. The USB-C ports are linked to the Quadro P620. Also the newly released NVIDIA Linux Open GPU Kernel Module does not support my GPU, no gsp.bin firmware for my gpu, which i believe is pre-Turing.

Is the proprietary nvidia-drm limited in exposing DRM properties?