How or in what editor are such photos taken?

Question

Photo

I found a photo on the internet, I’m interested in how to make such a photo out of any real photo

Answer 1

It's not hard. A photo is made up of layers.
Background layer - obtained from the original image by turning it into a grayscale image. Then the desired shade of color (blue-green) is mixed in.
The head and hands of each person are masked out in the original image. Apply a mask to the previous background layer.
All.
GIMP, Krita, Photoshop, etc.

Answer 2

"You can't copy a car with a set of tools" - Porsche.
In Photoshop, they do it after a course of study and training.