How to solve the problem of Phaser3 horizontal screen adaptation

I mean I want to make a horizontal screen game, and still keep the horizontal screen state in the case of vertical screen, who can help me?

many people do this: they look at the size of the screen and if the width of the screen is narrower than the height, then on top of the whole game they show a request to make the device into a horizontal view.

Thank you very much for your answer. I have solved this problem through adaptation