For some reason it assumes the activities synced today were done today, which causes to load activities from several days into one if you do not open the app to sync every day.
I opened the app and synced, after that the activity page shows 11 activities done today, going from several cycling activities and several workouts. It's 8 in the morning, I am not David Goggins 🤷‍♂️
As a result the activity fatigue is over 3x what it should be now.

Photo Viewer

View photos in a modal