Browser automation With selenium python : unable to locate element for join now google meet

i want to build an web automation program that automatically joins google meet using selenium with firefox driver in python.I was able to sign up,mute the mike and turn off camera,No problem till there,but iam having difficulty in pressing the join button,i cannot find the perfect element for join button...i have tried xpath,using classname,by text, nothing is working.is there any other method to get that join button to get clicked

Please Help