Aside from Melora's assistive pseudo-exoskeleton from the self-titled DS9 episode, is this the first mech suit in Trek? I don't recall any prior, but my memory isn't what it used to be lol.
I was just thinking about that! I want to say no since it was basically a fancy space suit that could open wormholes for time travel. I don't recall it having any features that we typically associate with mech suits.
Yeah, I only really thought of them because (a) the Memory Alpha page for "Exoskeleton" mentioned them, and (b) people have been comparing Zeph here to the Borg since images first came out.