Of course the question remains if a company has "maskAllImages: true, maskAllTextInputs: true" (and I also wonder if they hide UI elements like message titles / contents), but that's why I mentioned I only turn on telemetry for companies that seem to explicitly, consistently and robustly care about privacy and security.
"Watch people use your product" - that's their own words!
it literally sends you screen capture. and yes, you can id the user and capture inputs.
YC 2020. we love to see it.