If you're definitely seeing a reference to OneDrive then I'm completely confused, as OneDrive is owned by Microsoft, which has no connection either with Samsung (who made your phone) or with Google (who're behind the Android operating system that your phone runs on).
However if the reference is actually to Google Drive, then it might well make some sense to me. If your phone is configured to store all photos and/or videos in Google Photos (either as well as, or instead of, on a local gallery on your phone), then every picture and every video you take is automatically uploaded to Google's cloud storage service. That means that you won't lose them if your phone packs up or gets stolen; they'll still be available on any replacement phone you buy (as long you associate the same Google account with it). It also means that you can access them on any other device (e.g. a PC or a laptop), simply by logging onto your Google account.
Many people don't even realise that all of their photos and videos are being stored in the cloud and, as all users get a certain amount of storage for free, they never receive any bills or messages about it. However, when the amount of data they've got stored in the cloud approaches 15 GB (which is the limit for free storage), they then start to receive warnings that any future photos and videos won't be stored on Google Drive unless they pay for the service.
Increasing your Google Drive capacity up to 100 GB costs £1.59 per month or £15.99 if you pay annually.