Question for the engineers.

[BIGLRY]

The boxer analogy doesn't make sense to me. If it was like a boxer punching his gloves together then the pistons would be facing each other.

See if this helps.
first a four cylinder

Now a six, you can see the 120 deg power stroke with the 60 deg overlap in the six, while the 180 deg four meet together at the same time.


Look at the bases or rod ends of the pistons touching like a boxers punching their gloves together before a fight, not the tops of the pistons, it is much more obvious in the four cylinder engine.
The term Boxer came from the original Porch four cylinder engine, but is used universally now for any 180 deg opposing piston engine.