I wouldn't say Suffer Not is a poster child for "not having fascism" in 40k?
Like - it does have fascism in it? The Imperium is an awful fascist regime in Suffer Not. That's not really something it shies away from?
I was referring to the idea that you have to embrace the fascist mindset to enjoy 40k. I think that Suffer Not demonstrates that this is not the case by having the protagonist be an admirable and noble figure who fights against their fascist society rather than embracing it. Much of the narrative is explicitly centered on deconstructing the idea that fascism is somehow a necessity for survival against the threats faced by the Imperium.
Fascism is treated as a pervasive enemy that needs to be opposed rather than a necessary evil or source of strength as is the traditional approach that many people (myself included) dislike.