How to reproduce:

Open the attached "IN-154809" project
Close the Editor
In Terminal, run "Repro/run_repro.sh" from the project folder
Observe the crash

Reproducible with: 6000.0.0f1, 6000.0.85f1, 6000.3.26f1, 6000.6.6f1, 6000.7.0b5, 7000.0.0a8

Reproducible on: macOS 27.0.1 (M1 Max)
Not reproducible on: No other environments tested

Note: "Repro/run_repro.sh" runs Build And Run and, in the few milliseconds between Unity selecting the scheme and running the project, closes Xcode and gives its process ID to another app

First few lines of the stack trace:

- - Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[SBApplication workspaceDocuments]: unrecognized selector sent to instance 0x7cc4000060'
    #12 0x0000015ab96254 in FindWorkspaceDocumentForPath(XcodeCocoaScriptingBridgeApplication*, char const*)
    #13 0x0000015ab9607c in GetWorkspaceDocumentForPath(XcodeCocoaScriptingBridgeApplication*, char const*)
    #14 0x0000015ab96d7c in RunXCodeFromScript
    #15 0x0000016513b7d0 in (wrapper managed-to-native) UnityEditor.iOS.XCodeUtils:RunXCodeFromScript (string,string) [ {0x7ccdded188}
    + 0x80] (0x16513b750 0x16513b838) [0x148982a80 - Unity Child Domain]
    #16 0x0000016513b6f0 in UnityEditor.iOS.XcodeController:RunProject (string) [
    {0x7ccddec8c0}
    + 0x20] [/Users/bokken/build/output/unity/unity/PlatformDependent/CommonApple/Extensions/XcodeController.cs :: 63u] (0x16513b6d0 0x16513b700) [0x148982a80 - Unity Child Domain]
    #17 0x0000016516f2b0 in (wrapper runtime-invoke) <Module>:runtime_invoke_void_this__object (object,intptr,intptr,intptr) [
    {0x7ccddedc58}
    + 0xd8] (0x16516f1d8 0x16516f2ec) [0x148982a80 - Unity Child Domain]