The distinction: S Mode can be enabled/disabled by an admin on any Windows 10 system, as a toggle in Settings. S Edition was briefly sold as if it was a different product or different version of Windows; to disable it one would need to purchase Windows 10 Home or Windows 10 Pro, and there was no way to reenable it.
A lot of these disconnected products have pretty much direct replacements with slightly different names, same functionality, and probably even data continuity. Or were hardly separate products to begin with.
Which ones? Products are only on the list if they didn't have direct descendant drop-in replacements that were straightforward for the user to upgrade.
