Definitely. The John Wick series has its roots in a graphic novel. The filmmakers adapted and expanded upon the concepts and characters to bring the story to the big screen, while maintaining the core elements that made the graphic novel appealing.
Definitely not. John Wick emerged in the cinematic world. It gained popularity through movies rather than being based on a graphic novel. However, its popularity might inspire related graphic works in the future.
The 'John Wick Graphic Novel' probably delves into John Wick's backstory more deeply. It might show how he became the feared assassin he is. There could be stories about his training, his early jobs, and the events that shaped his character. It may also include some of his iconic gun - fighting scenes and his interactions with other characters in the John Wick universe, like the Continental's staff or other assassins.
It's mainly about the story of John Wick in a graphic novel form. It likely details his origin, his skills, and his journey in the violent underworld he inhabits. It may include his encounters with various foes and his struggle to survive and take revenge if there are any motives for that in the story.