View Controller shows as pop-up

I want a normal segue, so no pop-up. But when I push the button to go to the next ViewController, it shows as ab pop-up. The buttons to the next ViewController is in a different storyboard than the ViewController I'd like to go to. This is the code of the first ViewController:

import UIKit
//some other code

class LoginViewController: UIViewController {
   //some other code
   override func viewDidLoad() {
      super.viewDidLoad()
       //some other code
   }
   @objc private func ProceedTapped(){
       //Door naar storyboard van de daadwerkelijke app
       print("Proceed clicked")
    
       performSegue(withIdentifier: "goToAppIdentifier", sender: self)
   }
   override func viewDidAppear(_ animated: Bool) {
       super.viewDidAppear(animated)
   }  
}

And this is the code of the ViewController I'd like to go to:

import UIKit

class HomeScreen: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        print("Home has loaded") 
    }
}

The kind of the segue of the "Storyboard Segue" is "Show (e. g. push)"

You just have to go to story board select the 2nd view controller and change presentation style to "Full Screen". Please check below image for reference