I think every workout shows calories burned. I wonder where you are looking that you don't see them. If you are using exercise app, calories show in summary at end, and for at least some, maybe all, workout types, can be displayed continuously.
For auto-recognized workouts, and with the exercise app, you can see calories on phone app by tapping 'days of exercise' tab, then the individual workout.
Before posting, re-read to see if it would make sense to someone else not looking at your Fitbit or phone.
Best Answer