In Collector there was the Tracklog -> ArcGIS Online via Nieuw Item > Objectlaag > Gebruik een template > Location tracking
The big advantage of the Tracklog over the new organisational tracking is that you could store the tracks of the field workers for a single project. After the fieldwork was done (could take several months), you could simply send the Tracklog layer created with Location Tracking to the client as prove of area coverage.
Now with the tracking option this is far more complicated. All fieldworker logs from all projects are stored in the same layer. After 30 days the data is automatically deleted. So you have to make intermediate backups and combine those in the end.
Bring the old Location Tracking back as described over here: https://doc.arcgis.com/en/collector-classic/android/create-maps/track-where-collectors-went.htm!
