dnovraD: Most people aren't even paranoid enough to do that kind of network logging.
That kind of behavior tends to prevent someone from enjoying life.
SteamDB probably could tell you what if anything?
Not only most people don't care, I assume most people don't even know it's happening.
People around me are connected 24/7, install all the crap in the phone and computer and once there's a requirement for using something unexpected, like a phone app asking permission to access pictures, they go all nuts and cancel. I'm talking about non techy people of course.
Many people were fine with telemetry on many games until some sort of big notification instead of small print appear to comply with some laws. They are stealing my data! The horror!
Look what happened with Steam. They were the best bros until starting to put a notification of peoples faces that the games are not owned to comply Californian laws (and probably to avoid a couple of lawsuits on other countries). General panic!!!!! "How could they???? They were my friends, I feel betrayed ;("
I mean, the recent influx of new accounts here in the forum in the past month or so, couldn't be by accident. I bet some random "know-it-all" on youtube, sudenly realized that Steam games are not owned and DRM'd (surprise surprise), and GOG it's pretty much the only place where one can own your games, if one archive them that is.
GOG did a awsome PR stunt taking adavantage of this issue with the cute stamp "preserved game".
I bet the cookie I'm eating that this thread (and many others) are the result:
https://www.gog.com/forum/general/will_gog_ever_transfer_steam_witcher_3_and_cyberpunk_keys In the end, a few hundred unecessary words later, I guess my point is that is safe to assume most games do some sort of logging over the network. It may or may not be disclosed on a very small print.