Which OS system for a 2017 iMac
I am a graphic designer using Creative Suite (inDesign Illustrator and Photoshop mostly) and I'm about to buy a Used (new for me) 2017 21.5 in iMac. I'm wondering what OS system I should put on it? It has Mojave on it now. My computer at work (mid 2015) got updated to Monterey not too long ago and I had to bring it back down to High Sierra because it ran turtle slow after updating. It was awful. And from what I hear - Adobe is not fixing compatibility issues fast enough. All that to be said - which operation system should I put on it? Catalina, Big Sur? Keep Mojave. Or should I buy a newer model - 2020? Thoughts please.
iMac Line (2012 and Later)