There are 14 different definitions for art in the Oxford English Dictionary. I'm sorry if you don't like it, but the English language is nuanced and words can have different usages. No matter how many times you say period, that won't change. There is a clear difference between creating a play that emotionally resonates with people and finding the fastest way to get all 8 red coins in Tick Tock Clock. Equating those two things makes little sense even if each fits under a separate usage of the word art.
And yet I have equated them. The person who cheeses his way through Mortal Kombat to have nothing but flawless victories, exploits bugs to make 3 heads come off with one punch, and can speed run to the end in record timing (made up example); they are an artist at exploiting the AI in Mortal Kombat.
That doesn’t make them the same as Steven Speilberg. Each creator or performer is judged within their sphere.
A kindergartner can be an artist.