How can I unplug my iPhone 15 charger without damaging the port?

you disconnect cables by pulling only the connector never the wire itself, this goes for both ends of the cable

and it's not just an iPhone cable thing it's how you should handle all cables.

Also pull straight out; try not to angle downwards or upwards.

Cheopo wrote:

thanks for the reply, but should we wiggle it out slowly or pull it out instantly with a little force?

No need to wiggle pull straight out with as much force as is required to remove it. Try not to overthink it.

should not matter unless you move it up or down into pressing positions

+1