I've old iMac with Monterey 12.7.3 on it, is it possible to install Xcode 15.2 on this?
I've followed this tutorial Is it possible to install Xcode 10.2 on High Sierra (10.13.6)? to change the info.plist and other changes but it still doesn't work.
It is old iMac so I can't update macOS on it.
Depending on how old your computer is, you could update to MacOS 13 with the help of Open Core Legacy Patcher
Of course running xcode 15 on osx 12 would be a better solution but I'm still looking for the answer.