The steps to uploading your own photo don't differ from uploading royalty-free images:

Once you created an account and signed into Zoom, you can change your virtual background with a couple of easy steps. However, you can easily upload your own photos for your Zoom background and get a satisfying result. The best images for backgrounds are high-res ones like you can find via a royalty-free image service, such as Pixabay, Unsplash, or Pexels. While Zoom recommends using a green screen or a blank white wall for your backdrop, you can still cover up just about any environment with a virtual background. If you're using your iPhone or iPad, you'll need to have an iPhone 8 or later or a fifth-generation iPad or later, otherwise, the virtual background feature isn't compatible. If you have Zoom already, check that your PC or Mac has Zoom version 4.6.0 installed. If you haven't used the feature yet, you'll need to start by downloading Zoom. The odds are, you've seen a ton of different virtual backgrounds flooding the internet. Here's how to make your own Zoom backgrounds to customize your video calls in a few simple steps. While a lot of users are uploading images from royalty-free websites, you can use your own photos as backgrounds as well. One of the best features, though, is the ability to swap out your background for a virtual one. Zoom makes conference calls easier with its simple interface and swift group chat capabilities.

Free office zoom background images