If you created a link for a FaceTime call, you can start the call either from an app (for example, in a Messages conversation, click Join) or from FaceTime. If you created the link in the last day or so, you see it in the list of recent calls in the Upcoming section; otherwise, you see it in the date-based section — for example, below Last Week.
In the FaceTime app on your Mac, click the Sidebar button when the badge , then select Silence Join Requests.
When you no longer need a FaceTime link that you created, you can delete it.
In the FaceTime app Apple Support article: Join a FaceTime call from an Android or Windows device