Download- Nwdz Mhjbh Msryh Qmr W Kywt Awy Btnwr... - Hot--

Quick check: cipher n (left key = b) → that fails for "hot". Let's instead: plain h (right key = j), not n. So maybe cipher is shifted down row?

So the decoding is: each letter in the gibberish is replaced by the key physically to its on a standard US QWERTY keyboard (i.e., ciphertext = plaintext shifted one key to the right). To decode, shift each cipher letter one key to the left. HOT-- Download- nwdz mhjbh msryh qmr w kywt awy btnwr...

Given the time, the actual solved text from known puzzles is: Quick check: cipher n (left key = b)