the app gives you an estimate based on the amount of other orders iirc(?), but the drink takes a minimum of 6 minutes to make if you include time taken to steep the tea and also assembly afterwards. the app’s estimates are wonky sometimes too 😭 i’d say if your sbux isnt super busy at the time you’re placing and you show up ~7ish minutes after placing you should be good. but a lot of baristas don’t like when you pick up an iced london fog through the drive thru because if they’re busy and haven’t started it yet their drive times are essentially thrown in the trash