Should You Give the Artifact to Mateus or Zaretskyi in STALKER 2? (All That is Left Mission)

All That is Left is a side quest in STALKER 2 that involves helping one of the Ward's officers find an artifact for his men. You'll have to search for this artifact in a nearby toxic dump, and not long after you get it, you'll meet a researcher who wants the artifact for scientific purposes. Whether you side with the officer or the researcher will affect the rewards you get in this quest, and if you're wondering what you can do to get the best outcome in this STALKER 2quest, here's a guide to help you out.