Android device-specific resolution

Unity Remote 4 transfers the GameView screen to the terminal.Therefore, if you transfer the horizontal screen to the vertical terminal, the terminal becomes vertical.Therefore, if you want to play the horizontal screen in Unity Remote, you need to turn the terminal to make it horizontal.
Basically, the resolution of GameView is extended, so if you want to check the layout, I think GameView should be the same as the layout of the terminal (aspect ratio, not resolution), or transfer it to the terminal.

I have my own script for changing the resolution to a certain percentage (50% of the width) of the Button if the UI Button is on the screen.

ScreenSizeKeeper.cs

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class ScreenSizeKeeper:MonoBehavior {

    public Button myButton;//set UI>Button which width is used as standard

    bool isRunningOnAndroid(){
        return(Application.platform==RuntimePlatform.Android);
    }

    void Start() {
        if(isRunningOnAndroid()==false){
            return;
        }
        float aspect=(float)Screen.height/(float)Screen.width;
        float buttonRatio=0.5f;//50%
        int buttonWidth=(int) myButton.GetComponent<RectTransform>().rect.width;
        float newWidth, newHeight;

        newWidth = buttonWidth/buttonRatio;
        newHeight = newWidth* expect;

        Screen.SetResolution(int) newWidth, (int) newHeight, false);
    }   
}

The above script is associated with an Empty GameObject (name: ScreenSizeKeeper) to adjust the screen resolution.

Switching between Vertical and Horizontal is not considered.