Human field of view is rather peculiar theme. Eyes (eye-brain system) are much more complex than any lens or camera system. There is nothing like sharp 180 degrees horizontal field of view. There is of course almost 180 degrees horizontal peripheral view. But your eyes focus on quite small detail and it is brain what combines such details into three dimensional sense of space. In fact photography considers cca 45mm lens to be normal “natural human angle and sense of view”. 45mm lens in 135 film /full frame standard mean… cca 45 degrees of horizontal angle of view.
I would argue anything over 90 would surely be an overkill for normal playing. That field of view distorts space considerably and almost makes it impossible to look into the distance. (Everything distant would be rendered so small.)
FOV in alpha is quite right for my needs. I would perhaps want to be able to “zoom” to 90 degrees and, let`s say, 20 degrees. But sixty seems to be quite right “normal” view. And as would like to repeat
photography considers cca 45 degrees to be the normal and natural view of human eyes that focuses on other person.
Edit: try spreading your hands in 90 degrees angle and judge yourself whether you are or are not able to see your hands sharply. Then try to look at different objects or persons in your room / flat / house / city / anything and notice the perceived angle of view and the real angle of your focused (in both senses of the word) view. Notice than even in case of reading small book or ebook your eyes must move from left to right (or right to left or top to bottom).