pong-game/PongGame/Pages/Index.cshtml.cs

using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;

namespace PongGame.Pages;
public class IndexModel : PageModel {
    private readonly ILogger<IndexModel> _logger;

    public IndexModel(ILogger<IndexModel> logger) {
        _logger = logger;
    }

    public IActionResult OnGet() {
        return RedirectToPage("Pong");
    }
}