1. Open VRChat
  2. Open Menu
  3. Open Camera
  4. Try to grab the invisible lens in the centre of the camera
On PC, once you close the camera, you can't grab it again but on Quest you can grab it as many times as you want.
For VRChat Devs: reproduction videos are in my folder. they're named
VRC_BugReport_29062025_1_XXX.mp4