OpenCal gives you one link that shows free time across Google Calendar, Outlook, iCloud and Teams. Visitors see when you are free for up to 90 days ahead, but they never see your events. Most companies block outside apps from reading company Teams calendars. OpenCal reads your Teams week from your screen when you press Read from screen and pick the window. The screenshot never leaves your browser. OpenCal stores only encrypted busy times. OpenCal is free.