I've read up on OCLP patcher user experience and it appears to me that the newer the macOS version installed on older Macs the more slower, buggier, and lower quality of life experience you get. It is akin to running Windows 11 on the bare minimum system requirements. It may run but it will crawl.In case you want to move to a slightly more recent MacOS (doesn't need to be Ventura), I've recently found https://dortania.github.io/OpenCore-Legacy-Patcher/ . It was very straightforward to move my 2015 iMac and 2012 MBP to latest Ventura, I could even reuse a camera 32GB SD card as the install/update medium
If the 27" iMac doesn't happen and you are looking for an external monitor, have a look at this article about resulution and scaling on MacOS, the graphic halfway down shows which size+resolution combinations to avoid.
Example... my 2012 Mac is up to 2019 macOS Catalina. If I installed 2022 macOS Ventura on it then it will not be 100% functional and at a snapiness of of a 2019 macOS.
I'm not the target audience. I prefer Apple release a 2023 iMac 27" M2 Pro 5nm as my Fusion Drive's HDD is dead, left speaker is busted and LED backlight at the edge of the display are dimming.
I have a 2019 MBP 16" 14nm with 2022 macOS Ventura and between that and the 2019 macOS I do not see any compelling feature to go through the hassle. What is key here is the Security Update.
TBH if I knew that Apple was jumping from 5 years of 14nm Intel chips to 5nm Mac SoC I'd have kept to my 2011 MBP 13" 32nm and go direct to a 2021 MBP 16" 5nm!
A Mac mini + external display is useful for those who want to upgrade prior to the last Security Update. For my use case I do not mind keeping the Mac until its last Security Update that gets released after its 9th year.
Some point the "waste" of a good display. This 2012 iMac has a 2.5K display. The 5K display was 1st released in the 2014 model. Has remained largely unchanged for a decade.
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