Yea, exactly! Here's my S7 that I used for three years straight without a screen protector:
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Here's my ancient S3 as it sits today back when I did use screen protectors:
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Keep in mind that I work outdoor construction, take them with me while I'm riding dirt bikes, keep it in a compartment on my Jet Ski (I wrap it with thick microfibers when I put it in my Jet Ski) and they still all look mint. A friend of mine around the S5 era talked me out of buying a screen protectors anymore telling me that I have that nice screen why distort it with a film on it, etc.
Now on the other hand, I know three people at work who go through a couple new phones a year and every time that I see them their screens are completely shattered! Heck I wish I could find my old Boost flip phone...that still looked mint too the last time I seen it.
Now I've always used the thinnest silicon cases for my phones because I can't stand the look and feel of something big and bulky that looks and feels like a 6x9 patio paver block, lol, but I used them mainly for grip since these glass phones are very slippery. I "might" take a chance with the Ultra due to its size and not use a case at all because it's thickness without a case is the same as my S10 is with the Best Buy branded silicon case. The thicker phone 'should' be easier to grip without a case than the smaller thinner phones.