> I'm tired creating backups, or loosing data. Let's be honest, sometimes it happens. Does a filesystem that never deletes/overwrites anything exist?

I use linux and system link the home folder to a Dropbox folder. There is an extended history option [1], so that you can go back a year for any file. I think it’s a reasonably close solution if you do not mind the cost and syncing to cloud.

[1]https://help.dropbox.com/files-folders/restore-delete/extend...