This is a useful feature when you do not want to show the background when meeting with Zoom.
As of August 2018, it can be used with iPhone 8 and later models.
Set a virtual background.
1. Select [Details] in the lower bar during the meeting.
2. Select Virtual Background.
3. The virtual background can be selected as the default one or [+] to select the favorite photo in the iPhone.
Once set, the virtual background will remain set from the next time, so it can be used without resetting.