Earlier quoted context omitted.
> Running applications as restricted users has been standard practice for decades ...as a way of preventing users from interfering with the system or other users in multi user systems. Running applications as a user different from yourself is an ugly hack we've started doing because we don't have actual control over what our applications can access, so things like ransomware are possible despite not having system lev…
Once you add backup in the picture, the local users are great. My main account can have all the ransomware it wants, all the backups are gong to stay intact, so I can restore the files. * in the real life, there is “sudo hole”, but this can be fixed within the current user concept.
I'd rather prevent ransomware from working in the first place. Local backups are hardly sufficient anyway.