Given the context, perhaps it's a simple for each word separately? But that’s odd.
Shift backward by 7: f(6)-7 = 25 → y, y(25)-7=18 → r, d(4)-7=23 → w, y(25)-7=18 → r, w(23)-7=16 → p → yrwrp — no. Download- fydyw tjss ly lhm mharm mn tht qb a...
Try right shift: f→g, y→u, d→f, y→u, w→e → gufue — no. Given the context, perhaps it's a simple for
But maybe it's "a t y t r" — no. Could be "at ytr" — nonsense. Given the context