And if you are using Zoom for desktop, make sure you've enabled the Virtual Background feature, and unchecked I have a green screen option.

But you should make sure your device meets the minimum system requirements. How to add Zoom background without the green screen? Zoom enables you to add background on Macs, PCs, and iOS devices without using a green screen. If you want your customized Zoom background has a good performance, this is a recommended size for image background: 1920px X 1080px at an aspect ratio of 16:9. Best size for customized virtual Zoom background? The minimum size requirement of the Zoom background image is 960px and the maximum size is 1920px. Besides, make sure your device meets the minimum system requirements to use the Zoom virtual background feature.

Or you can update the Zoom app to be the latest.

Zoom virtual background not showing? If the virtual background is not showing up when you start the Zoom meeting, you can go to Settings > Meeting (Advanced) to turn Virtual Background on.

Zoom superhero movie