With F being dumped as a class of service, a bit hard to justify a F lounge. UA is doing to an all J premium cabin and building out a new J lounge at IAD (all branded as Polaris, because that takes some of the sting out of not having F).
In fairness, it would have been better to have dumped F before it went down hill. But, really doesn't matter going forward.
The IFL / GFL's were hardly exclusive or secret. They were open to all F (international).