Portrait format

To my taste, the placement of the three 'boxes'---board, clocks+move list and chat---is weird when you try to play on a screen in portrait mode. I am playing on a surface tablet with windows 11 and a firefox browser. The clocks and the move list insist on being to the right of the board with their fixed width and thus prevent the board's width to be larger that roughtly two thirds of my screen. Ideally, the board should fill the entire width of the screen and the clock would be displayed on the top and the bottom of the board. Chat and move list could be placed below my clock, accessible via scrolling. As far as I know, this already is the standard placement when you play in the browser on your mobile phone. Is there any way to achieve this just via the options already availiable on my tablet as well. Or could this somehow be implemented?

If I make my browser window smaller, the move list eventually moves below the board and then I can enlarge it further. But why can't these elements be more flexible when my browser is in fullscreen mode?