Who knows what you have or your priorities.
On my main Garmin screen, I have configured what is important to me.
1. Speed
2. 3S Power
3. Distance to next turn
4. Time
5. Cadence
6. Gradient percentage
The right side of the screen shows traffic approaching from the rear. Do you have that?
On the Garmin you can configure reminders to drink or eat at defined intervals. Do you have that?
If I am interested in the upcoming lay of the land, I go to the course profile page to see the hills to be ridden.