Activity monitor

cattfish wrote:

what is CategoriesService on Mac Book Pro?

I do not see much information on "CategoriesService" however it is part of the macOS yes.

XPC provides a lightweight mechanism for basic low level inter process communication; used by developers to create lightweight helper tools, called XPC services, that perform work on behalf of applications.

The launchd system daemon manages these services, launching them on demand, shutting them down when idle,

and restarting them if they crash. Benefits of XPC services include:

• Centralize work from multiple processes or mediate access to a shared resource.
• Delegate work so it continues beyond a client’s life cycle.
• Privilege isolation to narrow the scope of access for different functionality.

you can see it from the Finder>Go>G to Folder copy and paste:

/System/Library/PrivateFrameworks/Categories.framework/Versions/A/XPCServices/CategoriesService.xpc/Contents/MacOS/CategoriesService