Wait for key press in c#

Question

I have a PuppeteerSharp application which does some basic browser automation. The application cycle should look like this:

1. Launch browser (Chrome)
2. Get search term
3. open url 'google.ch'
4. enter search term in search input
5. press enter
6. Wait for left-arrow key or right-arrow key press in any application (other key presses should not have any impact)
7. If left-arrow key pressed, then do some logic
8. Else if right-arrow key pressed, then do some logic

My problem starts with the step at number 6. I can't find a way to wait for left-arrow key or right-arrow key press.

Here is my current code with some pseudo code, for how i expect the "key press wait" logic to look like:

using System.Threading.Tasks;
using PuppeteerSharp;

namespace GoogleMapsChecker
{
    internal class Program
    {
        private static async Task Main(string[] args)
        {
            // launch browser and save in variable
            var browser = await Puppeteer.LaunchAsync(new LaunchOptions
            {
                Headless = false,
                ExecutablePath = @"C:\Program Files\Google\Chrome\Application\chrome.exe" // get path to chrome executable
            });

            var page = await browser.NewPageAsync();
            var searchTerm = "searchTerm";

            await page.GoToAsync("https://www.google.ch/");
            await Task.Delay(5000);
            //Click on google search box
            await page.ClickAsync(".gLFyf");
            await page.Keyboard.SendCharacterAsync(searchTerm);
            await page.Keyboard.PressAsync("Enter");

            Wait for KeyPress(LeftArrow || RightArrow)
            {
                if (KeyPress(LeftArrow))
                {
                    //do stuff
                }
                else if (KeyPress(RightArrow))
                {
                    //do other stuff
                }
            }
        }
    }
}

How can i wait until specific keys a pressed and then depending on pressed key act further?

UPDATE: Some of you noted similair questions which are for console applications. My application is a console application but i want to detect the keypress even when my program isn't in focus. I tried the answers from the refered question but it didn't solve my problem.