If you're looking for this version in a downloadable format (often an NSP or XCI file), you'll typically find it labeled as a "v1.5.0 integrated" package, meaning the update is already applied to the base game. The final update also prepares the game for the full DLC experience, as you need update v1.5.0 to play the final Awakening DLC Pack.
Launching the original base game reveals significant content walls and balancing constraints. Without the final patches, you will run into several hurdles: How long is Fire Emblem Warriors? - HowLongToBeat.com fire emblem warriors switch rom nsp update dlc better