Link to Tom’s video https://youtu.be/-j_VZS
In that he raised the question of color gamut, contrast, etc. and mentioned that he doesn’t have the tools to check it. I do have a couple older DTP94 colorimeters, while no good for the HDR, they still work OK for “regular” color spaces. I’d be happy to loan one out if there is interest in testing those monitors. You can run the open source Argyll or the monitor specific GUI for it called Displaycal. I’d suggest the GUI. https://displaycal.net/
Hit me with a PM of where to ship it, and I’ll get that out to you. If not, here is a thread to discuss the video to save you a small amount of time.