Removable Privacy Screen filters for laptops

So I am looking for a little privacy screen filter for my Alienware M17 r4. One that preferably can just be placed over top of my screen when needed and then simply removed when not needed. There seems to be a huge price gap between these on Amazon. Does anyone know if the quality can really be so polarized? Any recommendations?

To give examples these were a couple I was considering and show the pretty big price differences.

https://www.amazon.com/Celicious-Anti-Spy-Protector-Compatible-Alienware/dp/B07ZHNYPWJ?th=1

https://www.amazon.com/Hanging-Privacy-Screen-Filter-Monitors/dp/B07W5NXWG8?th=1#customerReviews

Thanks for any and all help!