I'm trying to use the Xcode 15.0 beta on macOS 13.4 (22F66) on a MacBook Pro 16" (2019) but whenever I try to start a new project, Xcode becomes unresponsive – seemingly indefinitely. In Activity Monitor I see "Open and Save Panel Service (Xcode) (Not Responding)":
Even if I try to use Xcode 14.3.1 now I get the same problem. I've tried to resolve this by removing all Xcode-related files as well as the Xcode command line tools and reinstalling them but to no avail.
I'd appreciate any and all help in how to fix this.
EDIT: I have since found out that if I force-quit the bird process, Xcode will react again. But the bird process will start up and shoot to the top of the % CPU l column in Activity Monitor again almost instantly. It appears to be iCloud-related but I don't know what's causing it to take up so much CPU resources and make Xcode unresponsive, and how I can fix this.