Google has added a Meet button to Gmail and made it the default video conferencing app in Google Calendar, but users are not limited to using Meet; they can still use Zoom or other third-party apps by installing the Zoom Google Calendar plugin. To install the plugin, users need to click on the settings icon, search for Zoom, and install it with necessary permissions. Once installed, users can choose Zoom as their video conferencing app when scheduling a meeting. For work accounts using Google Workspace, administrators can disable Meet entirely, making Zoom the default video conferencing app in one click. Additionally, Zapier can be used to automate workflows between Google Calendar and Zoom, allowing users to share recordings, create events from tasks, and prepare for meetings.