Part of macOS
VoiceOverAccessibility
○ Leave it
Runs an accessibility feature you’ve turned on.
What it is
Powers features such as VoiceOver, Live Captions and pointer control.
If you stop it
That accessibility feature stops. Turn it off in Accessibility settings instead.
The verdict
○ Leave it. Part of macOS, or something that starts again by itself. You never need to close these.
In Activity Monitor
VoiceOverLive CaptionsScreenReaderUIServerDwell ControlAssistive ControlUniversalAccessControlAccessibilityVisualsAgentKeyboardAccessAgent
From Procession’s guide, in the words the app shows.