I don’t really understand how, but there’s some misunderstanding happening here. You can still backup non-analog photos that don’t come from a phone. I have a Nikon Z6-II. I take the memory card out, I stick it in a reader, I back it up. None of it requires a network connection or an untrusted computer. Asking about backing up your photos has nothing to do with analog or digital, spying governments or not.