I think you'd better leave it alone. You told your colleague that he might listen, but he was not satisfied with it. Why do you take care of me equally? Since it is a probation period, such colleagues will never pass the test. He works eight hours a day and plays games during his working hours. If he finishes his work, it means that he has the right to play games. If he can't finish the work, his boss will fire him in the near future. Some things will naturally have results.