Yes, the Whitestone Dome.
It's a wet install and prob. the most complex screen protector installation you will ever do, as it involves "curing" the adhesive with an included UV light (screen protector can still be peeled off). Also one of the pricier options @ $45.
There are a number of install and review vids on YouTube, including some very good ones from U Droid Mania. The one big drawback is that it's a one shot deal, as you only have one screen protector and a set amount of adhesive. Also it's not be case-friendly with every case out there.
Available for S8 and S8+, along with some other phones.
And if you're not dead-set on glass, on this site and some other places people have had good luck with wet-applied plastic screen protectors as well, so it may be something to look into.
Or just go naked like I am and hope for the best
The Zagg Sapphire Defense which is case friendly, full adhesive over the display, much improved over the iPhone 7 Plus Version but very difficult to get aligned perfect. I installed mine a little high and little to the right and have bubbles along the top & sides. It's not glass but is of very good quality.
I'm going to try some glass protectors today. :-\
For the price ($49.99 on Zagg's site), one may as well try an actual full adhesive glass protector. As you noted, it's just plastic and the "hybrid glass" is just marketing lingo. And there are only trace amounts of aluminum oxide in the plastic, which makes it **technically** sapphire infused as Zagg claims, but pretty worthless for scratch resistance.
If you want a basic plastic self-adhesive screen protector (which is what this is), you may as well go for the official Samsung s8+ screen protectors. They come in a 2-pack and is available for under $20.