Ok, we’re playing different games 
I’m pretty sure packaging without the launcher will not give you an optimal experience, and leaves a lot of gaping holes, like being able to run console commands and not disabling print nodes ( two obvious ones - last time I tried it ).
With the Launcher, I do think a lot is done up front, which possibly explains the size increase that @Jade2619 saw. And the other problems are fixed. But some things will need to be done on the target hardware.