Agent Version is 15.1.3.

Devices are Android 9 and Android 11 from the same Manufacturer.

What was the collection interval/schedule configured in your data-collection rule?  Have you checked the location data in the collected-data tab of your device to see if there are any missing data points possibly due to GPS data signal strength or device powered off?

Your problem may be partially solved by decreasing the data collection interval/schedule from 10 minutes to the lowest possible value of 2 minutes.  This of course implies that the battery life of the device will be reduced as the agent need to wake the device up every 2 minutes to collect locaton data.  

More sophicated location/GPS solution may use other sensors such as accelerometers/gyroscope and other mechanism to track the exact route/movement at very short intervals (typically 10 seconds or shorter).  With your current 10 minutes settings,  it will be hard for Soti MobiControl to estimate/guess the actual route taken in between.  The problem is especially serious in highway when device movement can be extremely fast, or in urban areas with complex & dense web of road networks.  The tests I did in Hong Kong many years showed that the routes shown can be ridiculously wrong, especially because of the large number of dense & narrow roads surrounded by tall buildings/skyscrapper found everywhere in the city of Hong Kong.  Thd Mobicontrol software has to output something in-between the location points, and has to be pure guess whatever smart algorithm is used.