I am using the following for setting up downloads directory.
chromeOptions = Options()
prefs = {"download.default_directory" : "F:/downloadedfiles"}
chromeOptions.add_experimental_option("prefs", prefs)
#chromeOptions.add_argument("download.default_directory=F:/downloadedfiles")
driver = webdriver.Chrome(executable_path=r"servers\chromedriver.exe", options=chromeOptions)
But when I run the program, it is still downloading in "C:\Downloads" directory.