What is best FOV for TopDown shooting game?

What is best FOV and camera angle for TopDown shooting game?
I want to make same view like “The Ascent”.

I would probably not use a high fov to avoid the fish-eye effect (especially since we are moving towards wider and wider monitors).
So just play with the camera height, angle and distance until it looks right.

Also from that gameplay it looks the camera is dynamic (zooms and pans smoothly a bit in/out depending on situation etc).

Well, after seeing many complaints about the default FOV being not good for widescreens, i would say, pick the one you like, but give the users the ability to adjust the FOV to their liking.
Otherwise they have to use mods to do so, like this one here:

For the camera angle/perspective, isn´t that an isometric view or isometric projection in that game?