This is similar to $editcontext.editType.
Add editOperatingSystem or editOS property to the $editcontext property for the Form Calculation and Constraint Arcade Profiles (e.g. $editcontext.editOperatingSystem ). It would return values like iOS, Android, Windows, macOS, Linux etc. I could write it to an attribute in my schema to store this value or use it to inform other actions.
Generally, I might want to know what platforms are in use for a particular feature or to gain insight overtime for all of my users and their editing patterns. I could use this information to focus training materials or develop forms whose layout lends itself to the most popular platform.