It is not currently possible to sort personal links.
We have logged your request for a product enhancement ID: 386815 - Can't sort Personal Links section with other App Portal sections. Enhancement request is being considered for future release.
Our product management team reviews open enhancement requests and considers them for inclusion in a future product release. There is no guarantee that a specific enhancement request will be implemented in a future release. For more information regarding our enhancement request policy, refer to our Global Support Guide on the Support Portal at software.quest.com/support