• opening "repository tools" from the find bard consistently opens "mail tools" (search for 'repository tools', you'll get one result one and click that one)
• opening "categories" from the find bard consistently opens "tour categories"
• we do not have the described issue for the following search terms that lead to multiple results too: 'tour', tags'
• opening Repository Tools or Categories through App Launcher will lead to the correct app

The linked support ticket provides an example in which a stock app and a custom app sharing parts of the name is confused.