One thing that happened was that home copies of movies used to have a stereo audio mix, I assume professionally and manually mixed down and rebalanced, even if

One thing that happened was that home copies of movies used to have a stereo audio mix, I assume professionally and manually mixed down and rebalanced, even if they didn't originally (though older movies—and not even that old—mostly were stereo to begin with) but then at some point in the DVD era they started only shipping 5.1 or better, even though very few home viewers have a 5.1 or better speaker setup, and even fewer have it calibrated anything like correctly. Result: most people are getting 5.1 dowmnixed to 2 by whatever shit-tier hardware + software their TV or budget-level DVD/Bluray/streaming player has, then played over bad TV speakers or, at best, a mediocre soundbar. To be clear, this isn't their fault, it's the fault of media distributors for no longer distributing an audio mix appropriate for most people, which would be a stereo mix focused on clarity of dialog at normal playback volume. The result is that all the trends of making the 'splosions louder and the dialogue quieter are amplified (haha) for the vast majority of home viewers, to the point that they can't understand any of the dialog unless the background music and explosions are waking up the neighbors. And that's without the film itself having made some questionable choices to begin with (as—which others have mentioned here—Tenet)