solidtime/app/Http/Controllers/Web/HomeController.php

<?php

declare(strict_types=1);

namespace App\Http\Controllers\Web;

use Illuminate\Http\RedirectResponse;
use Illuminate\Support\Facades\Auth;

class HomeController extends Controller
{
    public function index(): RedirectResponse
    {
        if (Auth::check()) {
            return redirect()->route('dashboard');
        } else {
            return redirect('login');
        }
    }
}