With more softwares (Microsoft Recall is an AI tool that regularly takes screenshots, or Malware caught using a macOS zero-day to secretly take screenshots and Actively exploited macOS 0-day let hackers take screenshots of infected Macs) capturing the data displayed.
The need to obscure information on the screen is needed.
I’ve found two related feature requests (linked below), but yours is different by requesting comprehensive obfuscation of all data fields. Is your idea that the toggle should make all fields visible/hidden at once, or are you proposing an individual visibility toggle for each field?