A lot of software today have some kind of Surveillance and Tracking. Sometimes it's called Targeted Advertising or Telemetry, but regardless of the name or reason of the Surveillance, all of it is malicious.
This comment thread is for people to document various implementations of this malicious feature.
It is better not to know nothing about Tenet, for otherwise it will ruin everything. I will be continuing this review with an assumption that you have seen the film. Spoilers ahead!