If you consider that the game has no difficulty settings, the game takes about the same amount of time for everyone to complete. But for most players, this process will take 60-65 hours. This is taking into account the fact that the player will walk through local shops and pass side quests.
Completing the game at 100% will take almost 100 hours or more. If you want to earn a platinum trophy, you should be prepared for the fact that you will have to spend at least 150 hours to complete the game. At the same time, you need to find and catch all the legendary animals.
Each mission has the opportunity to earn a gold medal. And if you can't do it the first time, you can go back and go through the mission again.