I've caught a lot of perch with flies tied on 3366 hooks, so yes they'll work. Not a particularly sharp hook right out of the package, but touch up the points & they're good. Some of the hooks in those pictures are nickel plated, and similar to the 3366. However, they're Gamakatsu hooks, they call a Sea Hook. I found several packs on Ebay in a size 6, and got them cheap! Not sure they're even made that small any longer.
Mustad has a version of that 3366 in a nickel finish, the 3365A & if I'm looking for an inexpensive hook, that's the one I would use for perch flies. The nickel finish a bit harder than bronze & IMO they're a bit sharper & stay that way a bit longer. I've used a gold plated version too, but don't recall the model number.
Flashy is fine for perch.
I've come to prefer a stronger hook like Mustad 3407 /34007 or VMC 9255 or any other good saltwater hook I can get. I've hooked into some larger fish a few times while fishing for perch, like LM bass, Pickerel or Striped bass so like having a stronger hook.
Stainless or tin plated are better for the waters I fish most since it's brackish. The 3366's rust a bit too quickly if the salt content is high. They're fine for freshwater use. If you sharpen them, take a permanent marker & go over the points where you remove the finish. That helps slow down rusting before you get to use them.
Frankly, that Mickey Finn variation sounds like a good fly to try for perch.