My goal when fixing drywall is make to the repair as invisible as possible, and I’m usually successful. Often I can make the complete repair in one trip because I can cure the type of joint compound I use more quickly, than a pre-mixed version.
When I arrive at my client’s job site, my first task is to replace the missing drywall, tape, then apply a first coat of joint compound. Next, while that cures, I go and get paint matched. When I get back, the first coat is cured enough for me to hit it with the heat gun and do a light sanding, then I apply the finish coat. Let stand for 20 minutes, heat gun and light sanding again, then paint.
When you hear co-workers complain about that big hole in the wall or ceiling, give them my card and tell them you got a guy!!