If you want, you can create your own 22000.1 ltsc version and try to install the lcu update you posted.
come on, the script has been given, EnterpriseS_x64_22000.1_en-US.7z give us proof that you have succeeded at this stage. tools have been provided your task is to create 22000.1 ltsc with the tools that have been shared. make sure it works, and continue by updating to 22000.2777 and that too has been given.