i also found out that phoneixlite did the sysprep procedure to get startisback in their modifications i don't know if they have tried to find a way to integrate it and failed or they just choose the sysprep procedure
1 last thing it can be done using RunOnce by putting it in Startup in Default user i tested this in 21h1 Pro not sure if it works in all editions so i guess i found a way to integrate it thanks guys have a good day