Android TV Webview resolution seems to be 1/2 HD (960x540), for all devices (HD, 4K, 8K)

Android TV Webview resolution seems to be 1/2 HD (960x540), for all devices (HD, 4K, 8K).
This means when we run a web app, I will have to use:

document.body.style.zoom = `${1/window.devicePixelRatio}`;

Is this is the best solution, or can I configure somewhere that webview runs a different resolution? Like HD out of the box, with pixel ratio of 1?