Multiple decks, like 6, is what I mean by "most blackjack." Yes, the 6-deck shoe is shuffled after about 75% of those decks are played. There are certain casinos that have "continuous shuffling machines" that shuffle every hand. Those are impossible to count, but rare.

6 decks, as opposed to 1 or 2, does make counting less accurate. But ultimately everything I said previously applies. Those stats are based on the current common game of 3-2 Blackjack, H17, 6-deck shoe, no continuous shuffle, and double after split.