I spent weeks researching monitors as I, too, was switching from an old 27 iMac to the M4 Mini. There are lots of informative YouTube videos on the subject. But in the end, I decided to stick with the Studio Display and found a refurbished SD for $600 off the retail price. I was nervous, but it's terrific. Two things swayed me: one, its bright 5k screen is how most people will see my photos online; and, two, I've always printed by test strip and after awhile you learn to see images on the screen the way they print on your printer the best. Anyway, FWIW, that worked out for me.