The 'Add Sensor' page is missing target system types and protocols that were added over the years.
This page shows the user the sensor capabilities in PRTG in a clear practical manner. Adding device types like IoT / load balancer (when we have f5 sensors), Application...gives the user ideas and increases sensor utilization,

Protocols are missing REST API and all the OT/IoT protocols.

As a presales engineer, I also use this page to present the protocols concept at times, It makes sense to have them all there and keep this list up to date with new changes.