Laravel returning 404 on newly created routes - laravel

Question

I'm trying to work with some ajax inside of laravel, still quite new to all of it, but I've noticed that for some reason everytime I create a new route I get a 404 regardless of what it is that I'm doing. For example, something as simple as:
Route::get('templateswitch', function() {
return 'Hello World';
});
Will still return out a 404, it is listed in the routes, and I've tried running the optimization through artisan too, so far no dice.
I'm not sure if it's just something I'm doing wrong in the code or something wrong with my server.
Any help would greatly be appreciated!
Full web.php
<?php
use App\Http\Controllers\SwitchController;
use App\Http\Controllers\TemplateSwitch_Controller;
use Illuminate\Support\Facades\Route;
/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| contains the "web" middleware group. Now create something great!
|
*/
Route::get('templateswitch', function() {
return 'Hello World';
});
Route::post('/switch', [TemplateSwitch_Controller::class, 'ajaxGetByID'])->name('test_templateswitch');
Route::get('/', [TemplateSwitch_Controller::class, 'index']);