Hi, I have MacOs Late 2014 Retina 5k. I checked but Apps store won't allow me to install new Monterey. https://support.apple.com/en-us/HT212551 is there a way to down grade iPhone version?

Wait you saying i gotta need to buy a new Mac for this?

Yes, i download the new Xcode 13.3.1 but my macOs BigSur is 11.6.5 doesn't let me install newer Xcode.