Don't trust the Windows Mixed Reality PC Check app. I ran it on my desktop PC which has excellent stats (AMD Ryzen 1800X with AMD RX480 with 32 GB RAM DDR4 3600, etc. etc) and I get warning messages. But when I actually installed my Samsung HMD Odyssey, no error messages or warning messages at all and it works perfectly.
Here's Microsoft's page on compatibility:
https://docs.microsoft.com/en-us/windows/mixed-reality/enthusiast-guide/windows-mixed-reality-minimum-pc-hardware-compatibility-guidelines
Windows Mixed Reality and Surface
Surface Book 2, Surface Studio, Surface Laptop and Surface Pro (2017) support Windows Mixed Reality when equipped with an Intel Core i5 CPU (or better) and at least 8GB of RAM.
Requirements:
Surface products require driver updates to be compatible with Windows Mixed Reality. These drivers can be installed on your Surface by going to Settings > Update and Security > Check for Updates.
Surface products require an adapter from the video port (Mini DisplayPort or USB-C) to HDMI 2.0 for Windows Mixed Reality headsets. The most recent version of the Surface Mini DisplayPort to HDMI AV Adapter is compatible with HDMI 2.0 (the older version is not). Similarly, the new Surface USB-C to HDMI Adapter is also compatible with HDMI 2.0.
Warning
(DO NOT IGNORE this warning: it's why I initially failed with my Surface Pro 2017 because I was using my old Monoprice MiniDisplay Port to HDMI dongle which caused the screen the blink constantly and which never activated the headset.)
Not all Mini DisplayPort or USB-C to HDMI adapters are HDMI 2.0-capable. Consider checking for explicit “HDMI 2.0” compatibility or “4K” compatibility on any adapter.
