using Microsoft.Playwright;

namespace PlayWrightXUnit
{
    public class UnitTest1
    {
        [Fact]
        public async void Test1()
        {
            //Set up lunch options
            var options = new BrowserTypeLaunchOptions()
            {
                Headless = false,
                ExecutablePath = "C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe",
                Timeout = 10000

            };

            using var playwright = await Playwright.CreateAsync();
            await using var browser = await playwright.Chromium.LaunchAsync(options);
            //var playwright = await Playwright.CreateAsync();
            //var browser = await playwright.Chromium.LaunchAsync(options);

            var page = await browser.NewPageAsync();
            await page.GotoAsync("https://www.ebay.com");

            await page.GetByTitle("Search").FillAsync("iphone");
            await page.Keyboard.PressAsync("Enter");


            await page.GetByTitle("Search").FillAsync("iphone 16 pro max");
            await page.Locator(".gh-search-button__label").ClickAsync();

        }
    }
}

Full solution located in GitHub.