Is the laser head supposed to be straight or slightly slanted?

:face_with_spiral_eyes:

So does that mean the laser is aimed downward perpendicular to the bed but that the barrel itself is canted in such a way that the beam exits the nozzle at center but enters from the side?

Something like this:
image

I can’t express properly the many frustrating hours I spent chasing this after I crashed my head into the bed trying to sort out what ended up being a faulty auto-focus pen. If everything measures and performs well then yeah… best left alone. Or… a new device made that eliminates this frustration.