laravel-beginning/form-app/routes/web.php

<?php

use Illuminate\Support\Facades\Route;
use App\Http\Controllers\FormController;
use App\Http\Controllers\AdminController;

Route::get('/', [FormController::class, 'index'])->name('form');
Route::post('/', [FormController::class, 'submit'])->name('form.submit'); 

Route::get('/admin', [FormController::class, 'showData'])->name('admin.index');