Alternatively, join my meetings on time. You click End Call, then Join. It takes 3 seconds.
You get Outlook reminders 15 minutes in advance. Webex/Teams notifications 5 minutes in advance. I’m sure you can make your watch vibrate or something.
People at my office join every meeting 5 minutes late because no one expects meetings to start on time anymore. So I guess we’re following this advice in all but the nominally scheduled time. Drives me nuts.