Zoom instructions for turning on live transcription: https://support.zoom.us/hc/en-us/articles/207279736-Closed-captioning-and-live-transcription
Log into your account on the Zoom website, then click on settings. The "meeting" tab should be selected by default. Click on or scroll down to "In Meeting (Advanced)".
The closed captioning toggle should be the fourth item in the “In Meeting (Advanced)” section. Toggle closed captioning and “Enable live transcription…” to active/on. Click "Save" to save your settings.
To turn on closed captions in the Zoom client, open the Zoom client on your desktop or mobile device. Click on "New Meeting" to start a Zoom meeting.
Once the meeting has started, click on “Live Transcript” in the toolbar, then click on “Enable Auto-Transcription” to turn on closed captioning.
On a mobile device, you may have to click on "More" in the toolbar to access this option.
When meeting participant speaks, the closed captions will appear near the bottom of the screen.
Click on the carrot (up arrow) next to the "Live Transcript" button to change the closed caption settings or to view the full transcript in the sidebar.