Yes, because there's no real choice. Only installing from an app store adds a little protection, but not much. The fundamental issue is the design of desktop OS' security models, which are focused around protecting local users from other local users, not around protecting local users from untrusted software.
(More than happy to hear suggestions for easy-to-use sandboxing for desktop software. The whole situation makes me quite uncomfortable.)
(More than happy to hear suggestions for easy-to-use sandboxing for desktop software. The whole situation makes me quite uncomfortable.)