Unfortunately, resolutions offered were weird. Native is 5120x2160 but that wasn't offered and scaled resolutions were weird. I guess macOS didn't read monitor's information properly or something. I wasted a few hours frantically trying to figure out how to connect a $12k computer to a 4-year old monitor which should have been a breeze but for some reason wasn't. The same monitor worked fine on Linux or Windows.
Truth. Third party software for trackpad. Third party software for mouse. Third party software for window management. Third party software for Spotlight replacement. Third party software to support a second external display.
The third party software is really good, but come on, Apple, take a hint.
This is partly because of the culture of hacking the GUI started back in the 80s with original Mac OS. Extending the OS beyond base capabilities is fun, but Apple also is usually selling an 'as is' experience like a high end chef. You can add ketchup to your stake, but they aren't going to do it for you.
And, as I said, I really only needed the software once I got an (ultra)ultrawide monitor, and it could be the info it is sending is also non-standard in some way.
I feel like this has something to do with Apple fucking with DP 1.4 for the ProDisplay XDR.
My 2019 Mac Pro with Catalina could happily drive 2 4K monitors in HDR @ 144 Hz.
People wondered how Apple got the math to work to drive the ProDisplay.
Big Sur? Not any more. 95Hz for 4K SDR, 60Hz for 4K HDR. Not the cables, not the monitors. Indeed, "downgrading" the monitors advertised support to DP 1.2 gave better options, 120Hz SDR, 75Hz HDR.
And it was never fixed, not in Big Sur, Monterey or Ventura, when I had switched monitors.
Hundreds of reports, hundreds of video/monitor combinations.
I agree, but frantically?
"a hurried, wild, or desperate manner, often due to extreme worry, fear, excitement, or panic"
At some point this frantic nature of trying to do something will cause more issues all by itself.
Instead of spending hours in desperation, I was only suggesting taking a step back and maybe when not in a frantic state, it would be easier to move forward.
Pick up a copy of BetterDisplay. Absolutely useful for monitors with non-standard resolutions.