Hello Utterconfusion,
You can disable the Center Stage feature in the meeting controls after tapping the screen while on a call in the Zoom app. Check out those steps in the article below from Zoom Support:
Using Apple's Center Stage feature with Zoom
Enabling Center Stage in a Zoom meeting or webinar
This option can be enabled or disabled as needed within a Zoom meeting or webinar.
1. Start or join a Zoom meeting or webinar.
2. Tap the screen to bring up meeting controls.
3. On the top-left corner, tap Turn On Center Stage to enable the video tracking.
4. To disable Center Stage video tracking, tap Turn Off Center Stage.
If further assistance is needed, then reach out to Zoom Support directly, as they'll be best equipped to assist with their application: Zoom Support
Kind regards.