[smileysteve]

"Correctly".

Manual transmissions (and sport shifting automatics) of most cars from 1904-2024 of sports coupes to trucks don't illuminate the brake lights when engine braking. Drivers following cars should be basing most decisions based on relative speed based on these existing.

If you were to follow behind me in my 2004 manual sports car or a 2021 automatic and only applied brakes when I did, you'd be speeding in my neighborhood and rear ending me, as I keep both in second gear and it keeps me at 20mph.