I still backup my files the most basic way, that is, create an archive locally, connect external storage and copy it there. Then disconnect external storage. The archive is made onto a separate internal drive and I keep the most recent one there, so I don't even need the external one for minor accidents.
I think only once in the last decade or so have I wanted (but never needed) to pull something back from external, but it's nice to know it's there.
The main downside to this method is that it doesn't de-duplicate, so keeping several takes a lot more space that it would do otherwise.