The prehistoric artifact in "Stalker 2: Heart of Chernobyl" is a very powerful prop in the game, which can provide a very powerful increase. What you need to pay attention to when looking for a prehistoric artifact is that you must not only use it Within the spawn radius, you also have to look directly at its exact spawn point.
What should you pay attention to when looking for prehistoric artifacts in STALKER 2: Heart of Chernobyl
Unlike the original STALKER game, where you only had to get within a certain distance of an "invisible" prehistoric artifact for it to "appear" (spawn into the world), in STALKER In Game 2, you not only have to be within its spawn radius, but you also have to look directly at its exact spawn point.
I really hope this is a bug that will be fixed and not designed to be this way, as it would make manual exploration very painful for low-level detectors.
Another thing worth noting is that the spawn radius of artifacts seems to be ridiculously small now. In the original trilogy, you only had to walk a few meters away from an artifact for it to spawn, but now you need to be less than 1 meter (3 feet) away from an artifact for it to spawn.