Have you never seen a native app's auto-update get hijacked by malware? It happened (yet again) last month [0]

Tons of native apps also have plugins or addons, which (surprise surprise) is just code downloaded from some central repo, and run with way less sandboxing than JS.

[0] https://www.bleepingcomputer.com/news/security/notepad-plus-...

That's pretty far from hosting the program in the same spot the content it manages is hosted, and also installing fresh versions instantly.