The Files app supports many more apps and services than just iCloud. Other apps like Dropbox OneDrive can plug in there, allowing you to manage and upload your files from multiple services in a single place.
A few apps you might not expect also plug in there, and one I’ve started using lately is called Keep It
. It’s a notes app with a variety of clever features, and I’ve been using it to organize GIFs, screenshots, memes, gaming maps, and we’ll see what else.
One of Keep It’s clever features is that it plugs into the Files app as a source for files. That means if I want to upload one of my GIFs to a Slack community, or share a map of a certain game level, I can easily grab it out of Keep It via the Files app upload dialog. It’s a welcome feature for a notes app like this, and I’d love to see more add this support.