In reply to Herdwickmatt:
Take a look at single run field, that's what I used to use.
On Garmin Fenix 6 Pro, I just have a single 6-field screen that comes with the watch.
Road running: HR, current pace, average pace, lap pace, timer, distance. There's second page with elevation and lap statistics, but unless I am running hilly roads, I don't tend to watch it.
Trail running: HR, distance, lap pace, timer, elevation gauge (ascend/descend), time of day. The last one is an artefact of winter training, where knowing how much daylight is left becomes a bit more important. Secondary page contains battery, average pace, timer, etc. Sometimes I just display map when I am following a route I am not familiar. That seems to drain battery though.
If I am doing intervals, I load a workout so that I can stay in the set pace zone and it beeps like crazy if I am out of range.
For short (5-10K) races I might set a distance/time target and it gives me an estimated finish time and time ahead/behind.
This might sound organised, but honestly, it doesn't matter and I barely look at it during a run as most of the training runs are done off RPE (Rate of Perceived Effort).