If you're going to cover it, use a sticker, like the EFF stickers here[0]. They're reusable, so you can move it to the side for meetings. I used a hard plastic MongoDB-branded sliding camera cover on a couple laptops[1], and its presence appears to have contributed to backlight bleed like this[2].
[0]: https://supporters.eff.org/shop/laptop-camera-cover-set-ii
[1]: https://www.amazon.com/C-Slide-Sliding-Computers-Chromebooks...
[2]: https://i.imgur.com/P264KiI.jpg