When using -installapps $false when capturing a FFU, a Critical Process Died BSOD would happen when deploying the FFU and Windows attempted to load.
When capturing the FFU, the registry is loaded to grab the Windows version information to create the FFU file name. After unloading the registry, the FFU is captured. This process can happen too fast on certain hard drives (NVME). A 15 second delay was added after the unloading of the registry to allow for the process to complete before the FFU is captured.
rbalsleyMSFT