I've been using cases and glass screen protectors from Bodyguardz, for the last nine months, on an iPhone 6+, SE, and 8+
They have a privacy glass screen protector for the X. No experience with that specific style of protector, but my Bodyguardz products have performed the best of all the brands I've tried (Otterbox, Lifeproof, Zagg, and half a dozen others).
Slim cases with great drop protection. I drop mine [literally] daily on a variety of surfaces, and usually end up putting my phone in a worse situation about once a month (like closing the 4Runner liftgate while the phone sat on the bumper)...Bodyguardz has weathered all my abuse.
Lifetime warranty on the screen protectors (which I've taken advantage of twice- just had to pay like ~$5 shipping each time).
If you're into using your phone a lot for fitness, they make the best armband/case I've ever used, their "Trainr Pro" case. No need for a separate "fits-all" armband sleeve...the case has slots for a snap-in armband, and it WORKS.
Also, they have pretty regular sales and special offers, so if the prices seem too steep, just wait a bit (like bad weather in Florida) and they'll get better.
HTH