You don't have to ditch cross-platform building entirely just to escape dependency hell
I’m not aware of any attacks on native package managers in the past 5 years. The closest would be a poisoned Xcode build in China that wasn’t downloaded from Apple a while back.
Also getting an attack on one of the platforms means at least ~half your users are safe on the other one.
So that's good. One of my larger gripes with native Mac/iPhone dev was always needing to rely on a third-party package manager with all its quirks.