override client settings in settings.php

I'm trying to override "Generic" name in order to show something custom in my login link instead of "Login in with Generic"

I've tried settings.php settings.local.php

$config['openid_connect.settings.generic']['settings']['name'] = "my SSO";
$config['openid_connect.client.generic']['settings']['name'] = "my SSO";

none of these work. Is there somewhere documentation about these overrides?
Found some searching old issues.

Would be nice if I was able to do from web interface, something like "Display name"

Thanks