thank you. I did learn that! The lower the better.
I also learned about "virgin" vinyl.
I appreciate anything else you might think I need to ask about.
I wouldn't concern myself with too much about "virgin" vinyl. Every good manufacturer that I know of uses virgin vinyl. It is actually cheaper than recycled content so that makes sense.
You need to figure out the right glazing for the right elevations.
You still spend more money (historical) to heat your homes in OK than you do cooling them. As a result, you want to make sure that you get all the free heat in the winter months that you can while negating the summer heat.
You will see countless threads discussing this principle on here but the quick and dirty of it is, make sure you have a high solar heat gain on the South facing elevation if you have good winter sun and low solar heat gain on the rest.
Most 2 coat low-e coating will more than cut the sun's radiant heat down by 2X fold right off the bat. Going with a lower solar heat gain range will more than 3X fold down.