Can I control the order in which programs are loaded during boot-up?
There are some ways to control this.
The best recommendation will follow a description of the issue you are
trying to resolve and why you think you need to do this, if of course
it is not an intrusion on your privacy.
What issues do you see that you think starting things in a different
order will resolve?
What things are not normally in a good order?
What would a better order be?
If you could change the order what would you change?