Personally I try to keep it as minimal as possible but at times I wonder if I should have another page. Not for looking at all of the time but maybe a little.
I usually go 1 main page of timer, distance, avg 3 sec powrler, np, cadence and hr. I did keep the elevation page on there today since I just got the 530 to see what this climb pro is all about.
In time trials I do - 10 second power, time, distance, HR
For all other riding I do - Time, speed, HR, Cadence, Distance, 10 second power, kj
I’m a data junkie. My garmin screens:
Page 1 - 3s power, avg power, np, cadence, HR, speed, avg speed, grade, distance, time
The only field I don’t really use much is grade, but I like to keep my eye on all the others.
My page 2 is the same, except lap (interval) versions for fields where lap stats makes sense
Page 3 is power metric focused - time in zones 2-6, TSS, Kj - I don’t keep this page up, but will check on it periodically if I have specific zone/TSS goals for a ride
Page 4 is just misc stuff - time of day, temp, battery level, total ascent and a few other non-important fields. I don’t check this screen much.
I keep my race screens minimal in terms of data, putting only things that I find useful there.
Tri race screen: 3s power, NP, distance. I like NP for keeping my overall pace consistent, and I usually break my long events up in “laps” by distance rather than time, depending on the course.
Road/Crit race: 3s power, time, speed, distance. I want speed so I can maintain consistent pulls at the front, time for crits so I have an idea of how long we have left and how many laps I can expect early on.
Workout: 3s power, time, lap time, lap avg power, TSS, HR, cadence, ride time.
Elevation page: 3s power, elev., total ascent, grade.
Map page and a couple of others with more meaningless data, but those are my main ones.