Step-1: Update the following method: 
app/Http/Middleware/VerifyCsrfToken

class VerifyCsrfToken extends Middleware
{
    /**
     * The URIs that should be excluded from CSRF verification.
     *
     * @var array
     */
     public function handle($request, Closure $next)
    {
        if($request->route()->named('logout')) {
            if (auth()->check()) {
                auth()->logout();
            }

            return redirect('/');
        }
    
        return parent::handle($request, $next);
    }
}

2. Check @csrf in the login blade
3. Remove logout route from the web.php 
4. Update the following controllers and replace 'auth' with 'guest'

a) Controllers\Auth\RegisterController

public function __construct()
    {
        $this->middleware('auth');
    }

b. Controllers\Auth\LoginController