The following information is the best method to create a reoccurring live stream using Google Meet. Another method and more information can be found on this Google Support page.
Navigate to https://calendar.google.com
Click the "Create" button in the upper left corner
Click the "More options" button in the lower left corner of the pop-up window
Click the "Add video conferencing" dropdown menu
Click the "Google Meet" option
Click the down arrow to show more options
Click the "Add live stream"
Copy the live stream URL and paste it into an email, Google Site, or Google Classroom post to share it with whomever you want to watch. Do not add students as a guest to the event, as it will give them elevated permissions in the Google Meet session.
Fill in the appropriate information for the Calendar event and save it. If this live stream is meant to be recurring, then it a repeating event.
After joining the meeting as the host, click on the "Start streaming" option at the top of the window to start streaming