Used to be a standard thing at ZRH, with the added complication(s) that:
The RWs did not have thresholds at the same distance and
They were not parallel.
The main reason to sidestep (they called it swingover) was to get a clear run to the parking area and save about 5min taxy time.
Whether you did it or not (provided it was offered) depended to a large extent on not only the vis. but the direction of the sun. There was quite often haze out to the north too, which the tower couldnīt see.
Anyway all those fun and games stopped when someone got a bit too cavalier and pranged a wing on touch down. Shame really.
How to do it:
Be established on speed and config. early
Have it well briefed beforehand (GA might be different etc.)
Be ready for a last minute change (ATC has a few other things going on)
Do it Visually, and be ready visually before the sidestep is made! Don't try to follow at the last minute GP and Loc on some instrument.
Get on the Centreline first and assess Glide after that.
Enjoy!
FC.