GSC GameWorld has released update 1.3.1 for STALKER 2, the patch includes a number of technical fixes. In particular, the issue where the sound effect when entering the Rib anomaly would loop and repeat every 10 seconds has been fixed. The error where the characters' voices would only play through one earphone has also been fixed. In addition, the patch eliminates a dozen EXCEPTION_ACCESS_VIOLATION errors and other causes of crashes.
Patch 1.3.1 also contains fixes for several quests. For example, an issue where NPCs from the Monolith faction could infiltrate the safe zone in Pripyat during the mission "Road to the Foundation" has been fixed. A situation where an NPC could block the entrance to the observation post during the mission "Assault on DUGA" has also been fixed.
In theory, this update should be mod-compatible. Specifically, it should work with a mod that adds a parkour and climbing system to the game, as well as a mod that allows fast travel to any point on the map.