I think I get the point you’re trying to make, but these are hardware factors that just can’t be redeemed with software.
If you have two completely different panels, you will always have a visible difference, the only real answer is to get matching monitors (and then calibrate them, on top).
If your screens are gonna look different anyway, why even bother? I don’t get the specific use case (which doesn’t mean there isn’t one).
I personally never got that point, because when you multi-screen, wouldn’t you specifically want two of the same model anyway because of color correction, fps and such? I know you can calibrate two different displays, but that will only get you so far and they’ll never look/feel the same.
I am sure there are use-cases for this, but how common is it that somebody needs this feature?
What’s much more common imo is connecting a laptop to two entirely different displays and mirroring the output and I had huge issues with Wayland in the past where it would just show half of the screen on either one, depending on resolution. Not sure if I did something wrong, but had to switch to X11 to make it work.
When did all this unfold? Didn’t the cert expire again, like, yesterday? When will they switch leadership?