amFilm 3D Curved Glass
Another option for the Google Pixel 2 XL is from amFilm. This is a tempered glass screen protector similar to what Google has to offer, only far cheaper.
The amFilm is only 0.33mm thick, scores a 9H on the hardness scale, and is extremely scratch and fingerprint resistant. The sides of the glass screen protector curve perfectly to fit your phone. Additionally, the company designed it slightly smaller than the actual screen, meaning you can install a case and it won't interfere with the screen protector.
If you install it and notice it doesn't cover the edges 100%, that's why. That is a design choice so cases still work and won't pull up the protector. Another difference between amFilm and Google is this has black edges on the top and bottom to match the bezels on the Pixel. Basically hiding the screen protector.