No, nowhere near. I probably had the very first S41 (still have it), and it was never that bright.
Puzzled where FF are getting these antique LEDs from, maybe they found an old reel in an abandoned warehouse somewhere.
The old FET+1 driver didn’t hold back either, even when constructed with the shoddiest components by Banggood/Manker. I really doubt that the modern FF one is actually any better, in the limit.
Maukka’s old numbers are here: Astrolux S41 measurements (Quad Nichia 219B, 18350/16340/18650)
I’d like to say that the tint is wondrous, like a fine glass of vintage wine, and that mine torch (S41, not this one) is a rare unrepeatable classic. But it is not. (Actually it is, you can’t buy the 219B version any more). Just ordinary. And you will be lucky to get even 1000 lumens out of four of these antique LEDs, for a few seconds, with a top cell. Then they will cook off. At least the S41 has a big chunk of copper to soak things up for a couple of minutes, and a crude, but worthy driver with no thermal management worth mentioning. This one does not. Quite predictable. So many better things already possible.