The link you followed will bring you to this page:
https://teams.microsoft.com/l/meetup-join/19:[email protected]/1615456146337?context=%7B%22Tid%22:%22e99647dc-1b08-454a-bf8c-699181b389ab%22,%22Oid%22:%22a43cd1ae-b3b0-4042-a8e1-00b880d751ed%22%7D
Short link transparency lets you know the destination of a link and other important information before even opening the link.