Blackjack what is blackjack switch?

i heard that there's a variant of blackjack called "blackjack switch" that supposedly has the lowest house edge in blackjack, but i've never encountered it at a real or online casino.

does anyone know 1) what it is exactly, 2) why it supposedly has a lower house edge than regular blackjack, 3) how it works, and 4) where i can find it?

i mean, if it's true that there's a variant of blackjack that has a lower house edge, then why would anyone play regular blackjack? that's why this didn't sound real to me when i first heard about it from a friend, and why it doesn't sound real to me now...

 

Hi Mike. The below is from Wiki:

Blackjack Switch is a casino gambling game invented by Geoff Hall and patented in 2009.[1] It is based on blackjack, but differs in that two hands, rather than one, are dealt to each playing position, and the player is initially allowed to exchange ("switch") the top two cards between hands. Natural blackjacks are paid 1:1 instead of the standard 3:2, and a dealer hard 22 pushes all player hands except a natural.