The copyright on images in Photoroom varies depending on where the images come from.
Images generated by Instant Backgrounds or Instant Shadows
You can use all images generated by Photoroom Instant Backgrounds and Photoroom Instant Shadows for commercial purposes (e-commerce, marketing, ads).
You can use all Photoroom templates for commercial purposes (e-commerce, marketing, ads).
If you create your own templates, you can replace background images with images from Unsplash. You can also insert images from Pixabay. There are different licenses for images that come from these services (see Backgrounds from Unsplash and Inserted images from Pixabay).
Images from Unsplash
When you replace a background in Photoroom, you can use the search engine to find images. The search engine uses Unsplash.
For information on copyright and usage, see License for Unsplash Backgrounds.
Images from Pixabay
When you insert an image into a design or template, you can search for an image. The search engine uses Pixabay.
For information on copyright and usage of Pixabay images, see License for Pixabay images.