We spotted an intriguing use of Augmented Reality (AR) in an ad recently. The app lets you lift a virtual stencil of your signature from physical paper and paste it onto a digital document. Don't know what that means for forgery, but it sure is a fascinating use of AR technology.
We can only expect it to get better with tech like Lidar making its way to phones and tablets. We're already seeing some crazy blurry backgrounds in phone photos being added artificially by the software detecting the corners of an object in focus. This opens up the possibility of not just lifting signatures off the paper, but also transporting physical objects to the virtual world.
One such app with this magic-like ability is ClipDrop. It's a paid service but the app lets you work across Android, Windows, iOS and MacOS.
While the AR implementation is relatively new, there are a lot of tools that let you do cut-outs for free. Sticker Mule's Trace feature lets you separate a subject from the background. Even Canva (paid version) added this feature under the "Effects" tab that works just fine when there is a considerable difference in contrast from the background.
Cutouts can give you a lot of flexibility when you're making a social post, thumbnail or stories page. Try experimenting with these free tools to give your illustrations a compelling look with some overlapping text and solid colour backgrounds.