Cannot access protected property CodeIgniter\HTTP\IncomingRequest::$uri

Do you use automatic routing? Or do you create all routes manually?
Without autorouting, you can change your filter to match the route names. This is a more reliable option. It does not depend on URLs. 
Try to implement this and you will be surprised how much less you need to edit new CI4 changes.
See https://codeigniter4.github.io/userguide...med-routes
Example code: 

PHP Code:

// Routes with names "as": users, about,...

$router    = Services::router();
$routeName = $router->getMatchedRouteOptions()['as'] ?? '';

if (in_array($routeName, ['users', 'about'], true)) {
        // any actions
} 


Simple CI 4 project for beginners codeigniter-expenses ( topic )