UV Light / Filter

I've been looking online for UV filters to place on the screen, but get overwhelmed with everyones focus on "blue light", including Amazon and the rest of the online stores. Seems you can just adjust Night Shift in the Macbook and iPhone settings to accomplish this already without the hassle of a physical blue light filter. Which is why I am really just looking for a UV filter.

So...

Anyone aware of whether Macbook Pro (bought in 2017) or iPhone 7+ emit UV light?

Anyone use a UV specific filter for either of these and have thoughts on effectiveness?

And, anyone know if UV specific filters are for sale and where?

Thanks, appreciate any insight you could share.