Part of macOS

`fseventsd`File change tracker

○ Leave it

Notes which files change, for Time Machine, Spotlight and apps.

What it is

Keeps a running list of changed folders so other parts of macOS don’t have to search.

If you stop it

macOS starts it again straight away. Leave it.

○ Leave it. Part of macOS, or something that starts again by itself. You never need to close these.

From Procession’s guide, in the words the app shows.