Just click on the above link - you DON'T need to have Zoom installed on laptops or desktop, and DON'T need to set up an account to join and chat.
1: Click on LAUNCH MEETING, and cancel the popups 2: An option to 'Join from your Browser' will appear...click on this 3: Choose a username - you can choose whether to share your camera or not, up to you!
NB: If you're on mobile, you'll need the app. But it's free.