I have update my Xcode 12 beta 4, and 3 different phones (iPhone 7+, iPhone 11 Pro and iPhone SE 2g) and when ever I run/debug an app from Xcode 12 B4, on the device, it takes more than a minute to launch, and it looks like the debugger is not even attached correctly, in any case it is takes a long time to do anything I the debugger.
I have tried to, reboot, re-install, clear div temp-folders, used cable via 5k screen, direct to the computer, wireless, with newly created project, and previous create project, all with the same or worse result.