Post your data field setup

Usually the following:
Top --> Distance
Left --> Timer
Right --> Avg. pace
Bottom --> Heartrate

(and sometimes I just use lap info).

Playing around with the Race Screen datafield a bit, which has:

HR - Pace (avg over last 10s) - Cadence
Dist - Timer
Avg Pace

Only really look at while running. With cycling just comes along for the ride and use my Edge to look at data. So below for running.

Mainly I take the default 3 field Distance, Timer, Pace one and add HR at the bottom.

If doing an interval session based on Strava segments I use that screen assuming have starred ones of interest.

Got one for other efforts away from a track with Current Pace and Lap Pace and sometimes might add Stryd power or HR. On the track however hardly look at the watch and just essentially use it like an old fashioned stopwatch with perhaps glances at 400 splits if doing longer than 400.

Got a "geeky" one with things like GPS Elev, Elevation, Speed, Temperature, Performance Condition that might swop in and out.

Have the map page turned on as well and the RD ones (for free) with the HRM-Tri. Sometimes look at GCTB, cadence and stride length.

I have more fields/pages than I need, but these are the ones I actually use (even if page 2/3 is usually only for between intervals or at red lights).

Easy/Long runs:
Page 1: Dozen Run
Page 2: Elapsed time, performance condition, average HR, average cadence
Page 3: LapHistory

Workouts:
Page 1: Lap Distance, Lap Time, Lap Pace, Pace
Page 2: LapHistory (time/pace/bpm for current lap + last 5)

Races:
(Longer races) Page 1: Dozen Run
(Shorter races) Page 2: lap distance, lap time, lap pace, lap cadence

Trail run with navigation:

Power
Speed | Avg. Speed
Timer

Heart Rate
Aerobic TE | Anaer. TE

Wpt. Next
Dist. Next | ETE Next
ETA at Next

Map
Off Course

Time of Day
ETE | ETA
Sunset

GPS
Batt. Level | Temp.
Elevation

Auto lap at 1km, 2 fields, Lap Speed | Lap Time


The ETE/Next ETA/Next and Off Course fields appear broken. Might be my .fit, possibly firmware...

I don't really look at most of the pages I have set up for running, but here is what I have:

Page 1:
Pace, Timer, Distance (can someone please tell me the difference between Timer and Elapsed Time?)
Page 2:
Lap Pace, Lap Time, Lap Distance
Page 3:
HR and Zone
Pages 4&5:
Cadence (the only one I care to check while running) and the other standard RD fields
Page 6:
Virtual Partner (I occasionally use this one)
Page 7:
Performance Condition, Strava Suffer Score, GPS

And then I have the map turned on and music controls and time of day.

I mostly just switch between the first 3 screens. I really like the workout screen when I do custom track workouts.

I haven't used it for biking yet but I'm going to go for my first ride this Saturday. I'm just going to go with the default screens already set up.