Python3.9 Selenium Gmail login error: "This browser or app may not be secure"

I'm trying to automate Gmail login with Selenium. Always I'm getting error: "This browser or app may not be secure". First I've tried with the google chrome latest version but that didn't work. So, I'm using undetected_chromedriver with google chrome version 86.0.4240.75, stealth and also using lot of arguments. But still no success. Please knock if you already know the solution and have tried yourself. And minimal price please.