Why use X-UA-Compatible IE=Edge anymore?

Question

I\'ve taken several online courses lately and I still see some instructors add the following meta tag to the top of their documents by default:

Answer 1

If the user is browsing a page located in the "Local Intranet" zone (such as on a corporate intranet), the "compatibility view" is turned on by default. This is when I have used "X-UA-Compatible" to force IE to use the latest engine.