Hey Wizard, thanks for the answer!
I'm not sure I understood you 100%, what I wanted to say is that last year the calculation was right, L4D2 and QL had the same 115% Hfov value when inputed 100 in the calculator, and now by default it is showing 15 degrees difference.
https://imgur.com/a/wSGlhl0
For QL the calculator auto defaults to Hdeg 16:9 while it should default to Hdeg 4:3? (from what I understand as Hdeg 4:3 shows the correct value).
Cheers man and happy new year 2021!