In the SAP Fiori Apps Reference Library, you have to select the target system on which the app is to be installed. You can choose between different major releases and also between different FPS’s.

These feature packs are smaller, targeted updates delivered between major releases of S/4HANA. To check if a Feature Pack is installed on your system, go to
System → Status → Button Product version → Tab Installed Product versions → Column SP / FTP Stack

In this case, no additional FPS is installed.