The problem with the term "genius" is that it's emotionally fraught but has no practical definition. One of the few things psychologists got right was a decision in the 1960s to avoid use of the term in I.Q. assessments (a decision that has sadly been swept away over a period of decades).
Quote: "At this point in history genius has become a commodity, an ambition, and even a lifestyle. Biographers, scholars, critics, and fans spend untold hours trying to nail down a concept that can't be nailed down, to identify a proof or a marker the way scientists identify genes." (emphasis added)
My humble suggestion is to avoid terms like "genius" and focus instead on what a person does with his/her gifts.
Source: "Our Genius Problem" (https://www.theatlantic.com/magazine/archive/2002/12/our-gen...)
Quote: "At this point in history genius has become a commodity, an ambition, and even a lifestyle. Biographers, scholars, critics, and fans spend untold hours trying to nail down a concept that can't be nailed down, to identify a proof or a marker the way scientists identify genes." (emphasis added)
My humble suggestion is to avoid terms like "genius" and focus instead on what a person does with his/her gifts.