chrome file upload window in webdriver headless mode

Question

I'm unable to control chrome file-upload window in selenium, so I use pyautoit, this works fine in desktop mode, but I need it to run in a headless linux container.

Is there any way to control it in headless mode? (its a single page app with a complex upload script I haven't figured out the internal post to work, hoping I can bypass it with selenium).

webdriver.find_element(By.XPATH, "//label[@class='button']").click()
time.sleep(2.0)
autoit.win_wait_active("Open", 5)
autoit.send(fname)
autoit.send("{ENTER}")

I'm using python 3.10.4, selenium 4.1.3