Is the ‘Quick Exit’ feature commonly applied to websites with sensitive information?

A developer pointed out this feature that was implemented on a website that I thought really understood the user experience at a high level, and showed that catering for the user experience doesn't just involve the content of the website, but also the behaviour of the user while using the website.

The example comes from a website called Thorne Harbour Health, and as you can see it has provided a 'Quick Exit' button that when clicked on, takes the user to a website that doesn't contain sensitive information (in this case the Bureau of Meteorology).

I am curious to know if there are other examples like this and if this is a common enough design pattern that reminds me very much of the same feature that used to be available for some desktop applications as well.