When our children were young, instead of stockings, we used to make Christmas Houses, which we saw on Blue Peter once. It was part of our run-up to Christmas activities. Cover a cardboard box (I used to bring home photocopier paper boxes for them to use) with crepe paper, cut out windows and doors from cardboard to paint and stick on, make a roof and cover it with some kind of white material to resemble snow etc . Surprising how creative they got. Anyway, they had those in their bedrooms, filled with low-value gifts and they were allowed to open those as soon as they woke up.
Then daddy would go downstairs "to check if he's been yet" (but really to get in position with the camera 😃) and they were then allowed a free for all to open their Santa gifts (usually two or three each)
Then it was breakfast, followed by a presents from mummy and daddy. Then a break to play with what they'd just opened, and later in the afternoon, they'd have the rest of the presents that were under the tree.
Now they're all adults, so we have a civilised morning, then when my daughter and granddaughter arrive, granddaughter is in charge of giving out the presents. Presents are opened at the same time, but I hold back as I like to watch them open theirs. It doesn't mean however that I end up with everyone watching me open mine, which I hate, but it's of my own making, so suck it up buttercup 😅