My concern is while enabling location sharing in ArcGIS Enterprise, do we need to install Geoevent server as well to manage spatio-temporal data store or we can simply configure it with portal site and it will work. Please see below excerpt taken from esri site.

https://enterprise.arcgis.com/en/geoevent/latest/administer/managing-big-data-stores.htm
However, in deployment patterns as suggested by ESRI, There is no mention of Geoevent server. Please see below image FYR.

This puts me in dilemma, that should I use it or not.