How to push two view controllers but animate transition only for the second one?

Question

I have three controllers (FirstVC, SecondVC, ThirdVC) inside storyboad, and navigation is sequential: a user can navigate from FirstVC to SecondVC, and then to ThirdVC. Now,

Answer 1

I use the following snippet to push multiple View Controllers:

extension UINavigationController {
    func push(_ viewControllers: [UIViewController]) {
        setViewControllers(self.viewControllers + viewControllers, animated: true)
    }

    // Also had this in here, left it in as a bonus :)
    func popViewControllers(_ count: Int) {
        guard viewControllers.count > count else { return }
        popToViewController(viewControllers[viewControllers.count - count - 1], animated: true)
    }
}