Versail wrote:https://masseffect.fandom.com/wiki/Quana
So would this planet be a hostile or non-hostile terrestrial world?
I'd place it as hostile terrestrial. There is an atmosphere, however, it has temperature far below what would be considered comfortable and while it has Nitrogen listed first in its atmo, it also has listed Carbon Monoxide, a gas which is known to be toxic to humans. Sounds hostile to me.