Hi GoldFood and welcome.
The "slightly faded" look you refer to looks to be a combination of reducing the amount of colour (saturation) in the image and a reduction in contrast.
Most editing software will have a contrast filter/adjustmentr and a saturation control, though the latter might be hidden among other filters like colour wheels or RGB levels.
Reducing contrast makes the blacs a bit less black and the whites a bit lest white. You should have no trouble finding a filter/adjustment in your editor that will do this.
But "contrast" and "saturation" are the keywords to search for.