What is the minimum and maximum number of jet bridges used for embarking and disembarking on a typical Airbus A380 trip and why?
The typical is two, one for each level. Three is not uncommon. Any more and the jet bridges will encroach on the adjacent gates, reducing the number of available parking spots at terminal. The right side is busy with other servicing equipment.
Also note the aft-left area being used for catering.