Fossify File Manager
★★★★★
Nice, simple app for handling the local files on your phone or tablet. It doesn’t get fancy or connect to cloud storage. It doesn’t even try to use network access, just local storage.
It does show you thumbnails and file properties, and you can move, copy, rename, delete, or compress (as a .zip) files one at a time or in batches. Searching by filename is included, though it’s slower than Google’s Files app.
I switched to this as my main file manager on my phone ages ago, and disabled “Files by Google.” This way if I save something locally, I know it’s staying local.
More info at Fossify File Manager.
Available from F-Droid, Google Play.