I went barenaked on my S9+, and all was well. I did so because, frankly, there wasn't anything on the market at the time that could handle that curved screen.
But when my S10+ came, and after a couple of months saw that the factory "screen protector" was getting dinged up getting the same use that my S9+ had, I figured there must be something out there by now. So I went to the Zagg place in the mall.
Sure enough, they had a top tier glass protector. They peeled off that Saran-wrap of a factory "protector" (no wonder it kept getting dinged up) and put theirs on. No problems. I re-set my fingerprints and all is well.