PG provides a lounge for economy passengers. Nothing special, but there are light snacks, coffee, soft drinks and free/slow wifi

Really the hassle of having to do transit security, lie to security officers about having a connecting flight, then lie to security officers to find a way out of the segregated departures area, and then re-clear domestic security, just on the off chance that the TG lounge dragon lets you into the lacklustre TG lounges, despite not having a QR-operated or Star Alliance boarding pass, and therefore not technically qualifying for access? Well, you can if you really want to, but seriously, is it worth hassle?