From there, just a relatively short walk to the train station and the airport express bus which was very convenient and cheap.

Not sure how many status pax they get at PRG. The fast lane was utterly deserted, I had to disturb the gaurdians from their important phone browsing to get in. Literally no-one else there the whole way from entry to exit of security. But the main security didn't look too bad either, so probably no real need for fast track. But if you've got it, why not use it?

No lounge for SAS in Prague, but I paid for entry to the Erste lounge anyway and it was a busy contract lounge that nobody would really miss. But it did keep me out of the main terminal until ready to board.

At least one person on FT would be happy with the provided reading material...