Noted. I can't speak for anything other than VS Code but we have the toggle in product which is all you need to change to turn it off for the core, extensions may have their own setting or share the core toggle, but we often can't control that.
There's also the very detailed page on the website detailing this as well as how to see all telemetry events that are sent in real time in the output panel and even how to print out a report of all events that get sent with their classification (code --telemetry).
There's also the very detailed page on the website detailing this as well as how to see all telemetry events that are sent in real time in the output panel and even how to print out a report of all events that get sent with their classification (code --telemetry).