My 2015 iMac (which is currently located at the 1890s cottage in the south east corner of Adelaide), is old. It has a Mac Monterey O/S circa 2021 and I've recently discovered that Adobe's Lightroom and Photoshop no longer work on this old Mac operating system.
Dam. Dam. Dam. I have historically used the iMac for my digital photography:
So I have moved to Affinity Photos for the photographic post processing of the digital photographs on the Mac in the short term -- until I am in a financial position to upgrade the iMac consumer computer to something more professional (eg., a Mac Studio). I haven't really enjoyed working with Affinity Photo -- it's free but I really do miss the Library component of Lightroom. So it is a case of hanging in there until I upgrade and that depends on me selling the cottage.
I am currently at the cottage painting it.