I have to confess that I am totally OCD about this topic. I tried so many protection solutions - liquids, plastic, glass. This is, where I settled. Of course you are welcome to ask, no offense taken.
So, Actually I have no idea if anybody does this. But as a matter of fact, the outer edges are now quite invisible, as the light which is usually illuminating the edges of a glass (any glass, by the way) is not not or less visibl?e, as I painted it black with a black permanent marker before applying it (with the protective film still there). YMMMV, but it certainly works for me. I made a picture. To the lkeft is the Nillkin on the Lumia 950XL. To the right is the same Glass on another tablet, also attached normally, not just lying there. One, you can see the edges, one not.
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