Yes, that was my point, you (generally) link statically in Rust because that resolves dependency issues between the different applications you need to run. Cost is a slightly bigger, bloatier binary, but generally it's a very good tradeoff because a slightly bigger binary isn't an inconvenience these days.

Docker achieves the same for everything, including dynamically linked projects that default to using shared libraries which can have dependency nightmares, other binaries that are being called, etc. It doesn't virtualize an entire OS unless you're using it on MacOS or Windows, so the performance overhead is not as big as people seem to think (disk space overhead, though... can get slightly bigger). It's also great for dev environments because you can have different devs using whatever the fuck they prefer as their main OS and Docker will make everyone's environment the same.

I generally wouldn't put a Rust/Cargo project in docker by default since it's pretty rare to run into external dependency issues with those, but might still do it for the tooling (docker compose, mainly).

True, Docker does it better because any executables also have redundant copies. Running two different node applications on bare metal, they can still disagree about the node version, etc.

The actual old-school bloat-free way to do it is shared libraries of course. And that shit sucks.