This file is indexed.

/etc/xdg/akonadi.categories is in akonadi-server 4:15.12.3-0ubuntu6.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

1
2
log_akonadiagentserver akonadi (akonadi agent server)
log_akonadiserver akonadi (akonadi server)