In the API Browser+, go to Locations->Hubs-> Installed Drivers. This will show you all the drivers installed to your hub. Then highlight a driver and click on List Devices. This will show you all devices, if any, that are utilizing that driver.
Devices-> Drivers is a list of any drivers you have created.
In addition to Z-Wave and Zigbee Edge drivers, there are LAN Edge drivers for devices like Sonos and that have been used to create virtual devices that run on your hub instead of the cloud. There are also Matter Edge drivers that support both Wi-Fi and Thread devices. Cloud to Cloud device integrations are identified as Viper devices. Samsung appliances and TVs are OCF devices.
The filter feature in the Devices list is a quick way to see how many devices of the various types you have in your ST setup.