Happy New Year! We need to send Tim Cook another thank you note because I recently installed Big Sur with opencore on the 7010, and it is so far performing flawlessly. I spent a year studying the dortania guide, took cues from trs96 about MacPro6,1 SMBIOS and general installation methods (adapted from the wonderful 9020 Big Sur OpenCore Guide), and fixed sound and USB 3 issues by studying
THIS, making config.plist adjustments, and.....
I started off with 11.2.3, mapped the USB ports with Hackintool, then swapped out the USBinjectAll with USBports, and finally updated to 11.6.2. What works: EVERYTHING smooth like butter (including USB3!), as well as continuity and handoff (thanks again to trs96 for writing about the Fenvi FV-T919 in the High Sierra/Mojave Guide!).
Now, I'm trying to study up about Monterey supported graphics cards that will fit in the Optiplex 7010 DT with the original PSU ... Does that graphics card exist, I wonder?
This Catalina guide is fantastic, has been my go-to for over a year, and it's also nice to know there is a way to get at least one more year of a supported, ultra-smooth MacOS with the 7010. It is still as snappy as ever on BS.