Stuck Setting up User Login

Hi All! So I’m following Chris’s YouTube video “Firebase Authentication Tutorial 2020 - Custom iOS Login Page (Swift),” and I’ve gotten to around 1:12:22 in the video where he starts setting up the function transitionToHome().
When I type storyboard inside the function nothing is found except UIStoryboard.
I also notice that my SignUpViewController, LoginViewController, and HomeViewController do not have the override func viewDidLoad() {


    // Do any additional setup after loading the view.


Please help and Thanks in advance!

Make sure when creating a project you select Storyboard, NOT SwiftUI