The Windows Photos app is getting background removal capabilities and additional features, as announced by Mala Srivatsa on the Windows Blog. An updated version of the app is now accessible for Insiders, offering new functionalities.
Background removal and replacement functionality is now available on the Windows Photos app.

The latest beta update of the Windows Photos app from Microsoft introduces new features such as the option to remove and replace image backgrounds and add black film strips for a professional touch. Users can now view image dates using the timeline scroll bar.
In the latest Photos app update, you can now share files individually on OneDrive by right-clicking them.

Improvements made to the Windows Photos app
Other features were added to the Windows Photos app, such as a simplified photo printing option accessible via the “Print” button on the command bar when viewing a single image. Additionally, users can adjust the aspect ratio to 7:5 if desired.
Introduction and accessibility
The 2023.11110.8002.0 app update or later version is needed to access the new features in Windows Photos, but participation in the Windows Insider program is required for the update to take effect.