For instance, I buy way more shredded cheese than blocks. It removes an annoying step that creates a dirty utensil that isn't trivial to clean (grater). If I'm making 3 quesadillas a day for picky children to eat at different snack or mealtimes, I don't want to own 3 shredders, nor to have to carefully scrub the cheese off it 3x per day.
I haven't noticed any important difference in the cheese besides saving me like 15 minutes a day of fussing with cheese graters.
However, I would recommend grating a block for a couple days worth at a time and keeping it in the fridge in a food storage container. That way you don't need 3 shredders or to spend all your time cleaning shredders every time you want a quesadilla. An electric rotary shredder or a kitchen-aide attachment makes it trivial.
Also, try adding a little canned Red Enchilada sauce to your quesadilla or egg and cheese burritos. It's life changing!
That's just an enchilada. They're good, but they're not quesadillas.
I make quesadillas in the microwave. You don't need to grate the cheese; slicing is just as good.
This assumes you're using corn tortillas; I assume flour tortillas don't microwave well.
Random example. I buy a meal made by a professional chef and have it delivered. It's more convenient and it's a much better meal than I could make. It's more expensive, sure, but that's not 'in every way'
You mentioned a chef which is less specific but I generally consider restaurant food less healthy than what I'd cook for myself due to differing incentives which is another dimension for convenience
My exception was to the terms "always" and "in every way".