The number of options seem to be dwindling with each release of an iPad. Tempered glass seems to be all the rage these days. Because of that, my favorite companies no longer produce them and so I use whatever is inexpensively available on Amazon... all have been excellent. I put a matte protector on every device that I own that has a screen (most recently, my 2017 MBA... *chef's kiss* )Long time heavy iPad user and never had a screen protector- but ready to go the matte route I think. Which one do you use, @sracer?
If you are looking for something that is generally recognized as being of higher quality, the PaperLike screen protectors are good. They're expensive though. I was able to compare them against the cheap ones on Amazon and I didn't see a quality difference that warranted the price difference... but that's me.