connect client to server type generic

[cointreau17]

I am trying to configure oauth2-client-bundle 2.16 in symfony 6.3 to connect to a generic oauth2 server Laravel passport 11. After several configurations my problem now is that I need the request to this route to be made by METHOD_POST

Symfony oauth2-client-bunle generates this route:

http://localhost:8080/oauth/authorize?scope=public_profile%20email&state=d9048e90eb368f4b6258128ac171aa9&response_type=code&approval_prompt=auto&redirect_uri=http%3A%2F%2Flocalhost%3A8081%2Fconnect%2Fpassport%2Fcheck&client_id=1

This route works if I request it with Inmomnia using POST METHOD adding a header with my client_secret in base64 and I get the passport login page:

Authorization: Basic base_64_client_secret <----Is my header

My controller is

/**
 * @Route("/connect/passport", name="connect_passport_start")
 */
public function connectAction(ClientRegistry $clientRegistry)
{
    // on Symfony 3.3 or lower, $clientRegistry = $this->get('knpu.oauth2.registry');

    // will redirect to passport server
    return $clientRegistry
        ->getClient('passport_oauth') // key used in config/packages/knpu_oauth2_client.yaml
        ->redirect([
            'public_profile', 'email' // the scopes you want to access
        ]);
}

How can I do to request from my Symfony endpoitn http://localhost:8081/connect/passport get succersfully redirection with METHOD_POST to http://localhost:8080/oauth/authorize?scope... endpoint?

Is this thee correct way to create my client?

Please help me, if you need more code I can add it.

Thanks!