Do you need nextcloud?
I am looking for an alternative to proton drive. It does not seem like the Linux app is happening anytime soon, and I want to be able to have a backup of the pictures I duplicate and edit without having to download the file and upload it after the changes I make.
I might have a misconception of what back up is.
Right before writing this, I used an ipad to take a picture of one of my cats. That ipad has the filen, nextcloud, and sync apps. I added the same photo to a test folder on each of the services I just mentioned. I can see the picture in the test folder of each service on my desktop.
Those are all free accounts, yes. I am not a paying customer yet. If that is not a backup, I don’t know what to call it.