Everything this Flow does happens on your device, in this page — so with scripts switched off there is nothing left of it but the name.
Previewing a downloaded file? The iOS Files app shows HTML without running it. Open the file in a browser instead: from Safari's downloads list, or Share → open in a browser.
Or use it at texflow.work/f/unit-price
Those are different kinds of thing, so there is nothing to compare yet.