From https://bugs.launchpad.net/catfish-search/+bug/1698002 As far as I know Dbus supports feature of highligting file in file-manager. The problem appears when directory contains too many files and you need to find desired file manually again
Sean Davis referenced this bugreport in commit 01aa98ff32259ac45bd343d8ad55d21c79d5cea0 Select file after clicking 'Show in File Manager' (thunar) (bug #14494) https://git.xfce.org/apps/catfish/commit?id=01aa98ff32259ac45bd343d8ad55d21c79d5cea0
Feature implemented in the above commit.