Globaliser

In a 2,000 mile destination radius from FRA, using ITA I easily found valid filed fares from London to AMS, BCN, BRU, DUB, DUS, EDI, FRA, GVA, HAM, LUX, MAD, MAN, MXP, MUC, CDG, FCO, VIE and ZRH. This is an incomplete list because of limitations from doing long ITA searches. I have also seen valid fares for ARN and CPH using a separate search, and there must be more.

So the answer is that these fares definitely still exist. As ever, the challenge is to book them when revenue management has released some G class seats. That is something with which ITA can also help if you turn the availability checker on.