More so than, say, Windows? Really?
And no, "people using one Linux distro can opt in to possibly getting pwned by each other by making use of a third-party software depot" does not reflect upon the entirety of the Linux world.
>More so than, say, Windows? Really?
significantly so. Windows has a coherent story when it comes to permissions and access. Differentiated out access controls, least privilege, UAC, mandatory integrity control and all configured out of the box.
Without AppArmor or SElinux correctly configured, which it isn't on most desktop distributions in the linux world most of your apps can still read anything, there's little sandboxing. The NT Kernel was designed with an object model in mind so you always had the abilities to have rich descriptions and policies for whatever you're handling where all of that is bolted on unix systems after the fact.
It's funny how these people say Linux security is bad because random people can upload arbitrary files to AUR, but won't say Windows security is bad because random people can upload arbitrary files to Microsoft GitHub.