From GameWatcher: “Metro Exodus, the third game in the excellent Metro FPS series, is out now, and it takes the franchise into a more open-world setting. Consequently there are a lot of things to see and do in this world, and one of the earliest optional missions you can take involves the Metro Exodus teddy bear.”
Source: N4G PC Metro Exodus Teddy Bear – How to Find Nastya's Teddy Bear