An update to Google Drive for desktop and mobile users will have you finding your cloud-stored files much more easily. Once the update has rolled out to all, in the search bar, you will have the ability to select from a variety of file types which will act as a filter for you. If you are looking for a specific PDF, search only through “PDFs.” If you need a picture from last year, search only through “photos and images.”
Once these parent categories are chosen, you have an even deeper list of search filters to choose from, which should really help in discovering the files you need more quickly. These additional filters are for “words used,” date modified, and many more.
Google does not state these changes as an update for any particular app, but will more likely be a server-side change. With that in mind, all users should see these improvements over the next couple of days through their respective platform of choice.