That obviously means you won’t be able to “remotely” change your phone camera zoom using the Galaxy Watch 5 or Watch 5 Pro after installing this latest update, leaving you (for the time being) with another cool new feature to try out.
This is called “Connected device diagnostics”, which is not a very catchy name but it explains what the tool does pretty well, allowing you to “check the proper performance of the Galaxy Watch’s battery status, touch screen function” and other such components on a connected phone.
Sounds like something that could definitely prove useful if you suspect anything might be wrong with your hot new smartwatch, unlike the generic “stability improvements” that very rarely amount to something users can actually notice out in the real world and experience for themselves.