If you want both then you could use intervals. If you are not using a schedule then you can manually start new intervals with a shortcut to the "New Interval" command. That way you can analyse both splits and intervals in the iPhone app. It is also useful for splitting hikes into uphill / downhill etc whilst still getting auto-laps.
This is the solution I’ve ended on...I’ve configured double tap for “next interval”...then looking at things in Strava, the “workout analysis” is split nicely by the intervals I tap out, and I still have the regular 1k auto lap splits.
(and obviously the option to look at either in the Workoutdoors app too).