Will upgrade once 11.2 is stable :)
Will upgrade once 11.2 is stable :)
I have 2 27" 4K HDR 144Hz monitors.
On Catalina I can drive them at full spec on my 2019 Mac Pro, with a W5700X.
On Big Sur, my options are HDR @ 60Hz, or SDR @ 95Hz.
Not to mention the monitors also got a firmware update to unlock 165Hz, which neither Catalina or Big Sur recognize.
I have heard about the issue on a few other forums with other monitors. The only one I haven't heard about in either direction is the ProDisplay XDR.
It's possible to get a Mojave VM up and running but it was nontrivial when I gave it a shot
You can sometimes get away with copying a handful of individual frameworks from older versions of macOS to newer ones, (I recently got Mountain Lion's QuickTime to work on Mavericks this way), but for so many libraries, many of which operate at a low level, it's just not going to happen!
Mojave is still a perfectly fine OS for a while longer. And you can of course use virtual machines, although personally I'd probably opt for dual booting if it really came to that.
I did try this, when Catalina first came out. But maybe I gave up too quickly (It was a "there is no way this will actually work" type of thing), or maybe I tried the wrong app...