If you're looking for engineers that can code a fullstack application in Typescript/React or a Backend/Front architecture in Python / Go / etc with a JSON API + a swift frontend; bootcampers will probably have a leg up. After all, they learned the specific knowledge to get them there.
If you need an engineer that can do audio dsp programming, embedded bare metal and/or firmware bootstrapping + development, OS design, compiler/VM design, etc; you'd be hard-pressed to find a bootcamper that could do the job without extensive training, let alone hit the ground running.
But ultimately, it's a moot point. After about 4 years, if they care more about the field than just as "a job" or "to pay bills" (e.g., they have a genuine interest and drive), either one will have enough experience to branch out and fill in their gaps.