When patching ur gfl2 with lspatch, use local, not integrated, that way u just need to install gfl2 lsposed module apk and enable it in module scope, and when there is an update you only need to update the module by re-install newest module apk.
this way you dont need to reinstall & download the whole game because original apk & module is separated since you use local instead of integrated when patching ur gfl2