It is no longer the "newest" official build (superseded by the 2024 Next-Gen update and the November 2025 Anniversary Edition).
The PS5 app is a separate product. If you owned the PS4 version, you can download the free PS5 upgrade, which is version 1.2 (equivalent to 1.10.163 on PC). Go to the PlayStation Store, search Fallout 4 , and select "PS5 Upgrade." fallout 4 version 110163 download new