Short Research & Surmise
On a site that is pursuing hiring employees for casinos in Macao, I found this statement:
In Macau, blackjack is the second most popular table game, and it also enjoys huge popularity in casinos in foreign countries. In this game, customers can choose to split, double down, or surrender, and they can hit or stand according to their own preference. Nowadays, you can find quite a lot of blackjack tables in Macao's casinos, and the source of customers is very stable for this game.
Generally, wherever I have found blackjack to include late surrender, I have found the other rules and options to be quite liberal.
Penetration and heat, as always, independently varies.