Yesn't.
Rust is perfectly happy to emit/use dynamic links.[0] It's just that the primary C use case (distributing and updating the main app and its libraries separately) ends up being unsafe since Rust's ABI is unstable (so compiler versions, libraries, etc must match exactly).
Avoiding static relinking during development is pretty much the use where it does work. In fact, Bevy recommends this as part of its setup guide![1]
Practice paints a slightly less rosy picture, though; since the feature is exercised quite rarely, not all libraries work well with it in practice.[2]
[0]: https://doc.rust-lang.org/reference/linkage.html#r-link.dyli...
[1]: https://bevyengine.org/learn/quick-start/getting-started/set...
[2]: For example, https://github.com/linebender/bevy_vello/issues/84
