That's extraordinary, even for Microsoft.
If you're on Win 11 Pro, up to 23H2, follow these steps to prevent 24H2:
win+R, type GPEDIT.MSC, press enter Locate "Computer Configuration\Administrative Templates\Windows Components\Windows Update\Manage updates offered from Windows Update\Select the target feature update version"
Now click the "Enabled" button, type "Windows 11" in the first prompt and "23H2" in the second prompt and click "Apply"
That will prevent 24H2 from being downloaded and installed. When they've fixed this and the "Recall" mess, you can go back and undo the setting.
You can still do the "bypassnro" thing, it's just a script that's been removed. All it did was write a registry entry and reboot. This is the registry key entry - you can still press shift-F10 at the same point and type this manually:
reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\OOBE /v BypassNRO /t REG_DWORD /d 1 /f
shutdown /r /t 0
another method to try is this, instead of the registry entry:
start ms-cxh:localonly
but I haven't tried that one yet.