If you're a Linux home user and you want a second copy of your data somewhere else in the event of a system failure / flood / fire I'd consider scripting something to B2 (Backblaze's object storage), AWS Glacier, or other archive priced cloud services.

If you're looking for a backup service to handle point in time recovery, differential deduplication, or other features of a backup service (vs. a second copy of your data archive) those also exist though I don't have a clear recommendation for home users.

On Backblaze's business pricing my understanding is they require minimum of 5 users so that's where you'll see the difference solved.