JAWS, much like Windows, often offers multiple ways to accomplish the same end.
It seems to me that Mike's sets of steps in Steps 1 and Steps 2 are to turn off automatic language detection in any single application. There appear to be at least these two ways to do it, if not more.
The Steps 3 set is to turn it off globally, regardless of application.
Brian - Windows 10 Pro, 64-Bit, Version 1903, Build 18362
Many of the insights of the saint stem from his experience as a sinner.
~ Eric Hoffer