They did.It would be nice if GO would bring back more trains to Kitchener, considering how big the communities around it such as Guelph are.
There are currently 9 daily GO train round trips from Kitchener, compared to 8 pre-pandemic. The all-time record was in September 2021, with 10 GO round trips per day. That timetable was basically the same as today's, but with one extra trip in the peak direction. Here's a comparison between that timetable and the current one: