How EDR, XDR, and SIEMs complement DFIR

Chances are if you have EDR (Endpoint Detection and Response) tools, your cybersecurity posture is mature enough that you also have DFIR (Digital Forensics and Incident Response) tooling as well. But you may be wondering: how they overlap, if at all. Do EDR tools and DFIR tools do the same thing, or do they complement each other?