It's often a bit of a choice, though. You definitely can minmax Civilization, Minecraft, or Crusader Kings III. But then you lose out on the creativity and/or role-playing aspect.

In Minecraft, I personally want to progress in a "natural" (within the confines of the game) way, and build fun things I like. I don't want to speedrun to a diamond armor or whatever.

In Crusader Kings, I actually try to take decisions based on what the character's traits tell me, plus a little bit of own characterization I make up in my head.