If there are files you’ve downloaded from the web to your phone, these should show up in the file manager searches on Android or iOS.

Files by Google isn't one of those popular Google apps that come pre-installed with almost every Android phone, and it isn't part of the Play Store's 10 billion downloads club, either. However ...

Android offers convenient built-in backup tools, but these don’t automatically save every file on your phone. Google appears to be working on a new option to explicitly back up downloaded files.

Google could bring Quick Share support to Android XR, allowing you to easily share your phone's files with your VR headset and vice versa.