Fill the empty spot in the favorite apps row at the bottom of the home screen
Which version of the software are you running?
Fairphone OS 21.11.1.-rel.0
I did a fresh install of Fairphone OS 21.11.1.-rel.0 and one spot on the app favorites on the home screen is empty.
If I remember correctly, in earlier Android versions that spot was used by the gallery app (which by now is replaced with Google Photos as default image viewer)
Maybe place the Google Photos app in the empty spot next to the camera app.
This is an image the Android dev blog used for the AOSP 11 announcement https://images.app.goo.gl/o3hBB8XcTz8r69uG7
They use Phone, Contacts, Play Store, Chrome, Camera as default for the App favorites, which could also be an alternative. Personally I'm slightly in favor of Phone, Contacts, Chrome, Camera, Photos
Internal Issue ID