实现方式

1. 浏览器启动时，加参数 args=['--start-maximized']；
2. 创建上下文时，加参数 no_viewport=True。

from playwright.sync_api import Playwright, sync_playwright


def run(playwright: Playwright) -> None:
    browser = playwright.chromium.launch(headless=False, args=['--start-maximized'])
    context = browser.new_context(no_viewport=True)
    page = context.new_page()
    page.goto("https://playwright.dev/")
    page.wait_for_timeout(10*1000)
    # ---------------------
    context.close()
    browser.close()


with sync_playwright() as playwright:
    run(playwright)

再运行，就可以飞起来啦~~~

有图有真相！窗口已是最大化！

Life is great and everything will be OK, huajianketang is here.