Yes, that’s how you’re reacting to the boss or any other enemies in games. You know that they do attack x, y, and z and then are vulnerable for 2 seconds, or which moves are parry-able to stun them, etc. Enemies in games have set move lists, and they have pre-set patterns and weak points etc.
For example when you see a skeleton you know exactly which moves and attacks patterns it has, and when to block/parry/strike to defeat them.
It’s not unique to from soft games, but it is literally the entire games “difficulty”. They usually just give them extreme levels of health and make them do tonnes of damage so you have to make few mistakes in recognising and reacting to the patterns.
Its a big reason why I don’t care about single player action games.