I’m not sure what is most usual, but I usually give my daughter a full breakfast before daycare around 7am, then they give “breakfast” around 9am (I consider it more of a snack cause it’s not all the food groups), lunch at 11, snack at 2, and pouch right before pickup around 4.
You can pack the snack and request them to offer it to him.
I would assume that this breakfast at 8 is a snack for most kids.
My son gets to daycare after breakfast time so I'm not sure what time they do that but they do have a morning snack at 8:45am, lunch at 11:30am and snack at 2:30pm