Why is Sakyamuni in Guiyuan Temple? Doesn't he have his own Buddhist temple? Does he have any history?

There is no fixed method for the Buddha to teach all beings. Buddha Sakyamuni gave lectures for 49 years. No fixed residence. As the couplet says: what's wrong with doing it and putting it down? When all beings hear Buddhism, they can accept the teachings of the Buddha and practice enlightenment. As the couplet said: Sheng Hui was born in a sense of ease, whether there is life or not.