There are issues with real-time lights (e.g., flashlights) shining on baked lightmaps in VRChat on Quest and mobile platforms. This problem occurs in multiple worlds, particularly those with many surfaces to bake (e.g., large rooms with many walls).
This issue started not too long ago as I was able to have working flashlights on these worlds that are now broken. Some of these affected worlds are on the newest SDK and unity versions recommended. While some others have not been updated in over a year and broke at the same time as all the rest.
It is easier to show with a video. I have uploaded an unlisted youtube video of the issue that you can find here: