eh. from experience it depends. my ferals have a range of reactions. I have one I can pick up and handle. if I had room inside I'd let him indoors, but gaining his trust was pretty lengthy.

one who had kittens (they live with me now, except one we found a home for) was super wary of us and now she screams for food when we come outside. can't touch her, but she's comfortable in our presence. both of those two pretty much live on my porch and allow my dogs to sniff them.

I've never seen an aggressive feral cat in the two years I've worked with ferals. scared, yes. but they will choose to run away before attack.