Is this original glass

[PbFut]

I asked this question on the vent windows a while back but now realize that all 4 windows have LOF glass.
Is it possible all 6 windows still have factory glass? I can't imagine the front is original with 150k total miles, but it is possible it was replaced at some point with OEM???
This is on all 6 windows. See pic.
I was going to take the truck in to have the glass tinted lightly and reinstalled. But if this is original glass, I am thinking it may not be wise. Or, is there so much of this stuff still around it's not particularly difficult to find and loosing a set to tint, which is reversable, is not a big deal.
Thanks for opinions.