You can join via Computer, Smartphone or via Telephone. To join via Computer, ensure you have one of the following web browsers. Google Chrome (preferred), Mozilla Firefox, Microsoft Edge.
Note that Internet Explorer (IE) is not supported by default but it can be made to work with a driver. Go to the Google support link at the end for details on how to install the driver for Internet Explorer. No drivers are needed for the supported browsers.

To join via a Smartphone you’ll need to install the Google Meet app.
Android - https://play.google.com/store/apps/details?id=com.google.android.apps.meetings&hl=en-US
Apple (IOS) - https://apps.apple.com/app/hangouts-meet/id1013231476