The Main thing is that I try to add a date to the date field which is very easy: Find Element / by using .send_keys("01/01/1990") But the problem is that in Windows all working fine - and the date picker looks like this But when I open it in a Linux box, the date picker opens like this (In the middle of the page with a shadow effect in the background) - which causes issues interacting with the input field: Extra: Windows and Linux execution happening in the headless mode Both using the latest Chrome driver What I have tried: Using JS to remove this date picker, hide and etc... using Actions / send_keys() and e.t.c... Using JS to add value to the element (can add visually BUT when click on empty space date disappeared ) So, I have two questions: Why is Windows and Linux date picker open differently What will be the way to add the date to the Linux version date picker (straight to the input .. NOT by using the date picker itself) UPDATE 1.0: Looks like issue is smililar to this one: https://github.com/mui/mui-x/issues/4447 As in linux box it ix opened as MOBILE and not as Desktop version of the website.... any idea how to make it opened in Linux as Desktop website? This does not work: options.add_argument("user-agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3") Continue reading...