These triple a games are expected to be sold in the millions. $20 is about enough for one hour of works in terms of labour. This times expected sales, which are on the thousands at max for Lemmy, and you got what it takes to develop an app like this.
As there are dozens of different ways to track different stuff, this can’t be answered easily. Try to open the task manager and examine the processes is a start.
But that’s only for tracking software. You could also examine the data you create Server-Side and just assume stuff. Like: you are away in teams and you haven’t touched files in Sharepoint for 60mins, so we assume you don’t work right now.