There is supposed to be a stuffed animal in this room, which is the key to progressing. I discovered this after checking walkthroughs after spending a long time going all around the entire area and the previous area examining everything, interacting with everything, and burning everything. 😡

On the steam discussion forum, the vibe is "yeah, that happens sometimes, just keep reloading from the start of the chapter and see if it appears eventually"

I guess I'm done now 🤷