PSA about the “High Precision Nozzle Offset Calibration”

I am not sure if it does an XY calibration then. Would be curious to the process/technology behind it.
So it might be doing something there.

In one of the older posts someone really had to run the “High precision nozzle calibration” to get rid of a serious XY misalignment between the two nozzles.

So to me it feels like it’s not doing XY at print start, or it does a lousy job.

If someone has more details, I am very interested.