Yes, this is actually how it work however page flipping mechanism require a memcpy, as such it is as effective as not using page flipping and just memcpy a fron

Yes, this is actually how it work however page flipping mechanism require a memcpy, as such it is as effective as not using page flipping and just memcpy a front buffer to display and doing software flipping through pointers exchange, the only advantage of using page flipping is that it require much less operations and prevent tearing but performance wise, it is roughly the same.