True or False trivia puzzle - Animal Well, Hades II [Ended] [Solution posted]

Here!

Don't share hints, please.

>>> SOLUTION <<<
7 statements are true, 7 are false (1st, 2nd, 4th, 5th, 9th, 10th, 12th).
The first two columns in the spreadsheet hide some characters written in the same color of the background.
(In those kind of files you can see what's written in a cell by selecting a given cell and looking at the fx bar above the grid. The different cell format or at least the black cells, if not the white ones, should have picked your attention.)
True on the left (white), false on the right (black).
So by picking the right character for each statement you’d get two 7-character long codes:
vOmAMUh
R2R0qx5
You had to use them in a link like this one: https://www.steamgifts.com/go/comment/xxxxxxx (my hint was referring to this) and you'd get to the GA page eventually.

That's it!