“Dialogue Boost” is described as an accessibility feature, and that’s fine with me, but honestly the sound mix is so bad in some movies that I bet 90% of people would welcome this even if they have no hearing difficulties in any other context. https://www.aboutamazon.com/news/entertainment/prime-video-dialogue-boost

Chekhov: “One must never place a loaded rifle on the stage if it isn't going to go off.” Ibsen: “Yeah, don’t worry, the guns have been fully telegraphed. My new rule is ‘Never bring the sole copy of a manuscript to a raucous party, unless it’s going to be in mortal danger.’”