Fairphone downloads started to become available (not for all devices yet and not for any A13 versions yet as far as I checked).
/e/OS community FP3 download or /e/OS official FP3 download
/e/OS community FP4 download or /e/OS official FP4 download
/e/OS community FP5 download or /e/OS official FP5 download
/e/OS community FP6 download or /e/OS official FP6 download