Review on 🔒 YAYAO Magnetic Privacy Screen Protector - Anti-Spy/Glare Filter for MacBook Pro 15" (Late 2016-2019) by Jon Garcia

Definitely worth buying. It hides the screen effectively and is better than other brands I've tried. I've tried two others (Kensington and some off-label devices) and this one is much more efficient. Turning the brightness down gives you maximum privacy. But even with a little more brightness, it's still pretty effective. Of course, if someone is standing behind you with the function turned on, they can see your screen to some extent, but rotating your laptop a bit is quite effective. I like the magnetic mount, it makes it easy to use. Note that sometimes your laptop won't shut down 100%, but usually my laptop can still go to sleep.