Z-Wave Dimmers and Switches use the Generic Z-Wave Driver, these devices do not report status change (for example when you push the button manually) but their status needs to be polled in a regular basis so the hub knows they have changed and show the right status, there is a "Z-Wave Poller" app for that.
Z-Wave Plus Dimmers and Switches do have the ability to report to the Hub when their status change so a new driver was written for them with this capability, those are the ones that have "Smart" in the name.
Furthermore, some Plus switches and dimmer (like the Leviton ones) are able to also report if the change was originated digitally (from the hub or an app or an automation) or physically (from someone manually pushing the button)
As far as I know this "Smart" classification only applies to Switches and Dimmers. For other devices, check the list of officially supported devices to find out what driver to use:
https://docs.hubitat.com/index.php?title=List_of_Supported_Devices
Or the wiki with the list of compatible devices us users have been able to get working even though they are not officially supported: