TBF this always ends up with a lot of misplaced blame on the consumer

TV manufacturers decided/figured out long ago that Joe public cares more about a screen being thin, at time of purchase, than it having any semblance of audio quality. And they assume anyone who cares about audio will buy a set of speakers or (increasingly) a sound bar anyway, so they just need the bare minimum included.

This has gotten to the absurd point now where the speakers included in your average TV aren’t much better than a particularly loud phone speaker.

It’s basically impossible to get something that sounds even audible on those speakers, without doing what adverts do and compressing the shit out of the signal, which has the bonus of sounding loud and bad for everyone, there’s no bringing the detail back that was squashed out. Movie studios aren’t going to mix a movie that sounds bad on a system designed remotely properly (e.g. a cinema or reviewer’s TV), so we’re in the current situation.

The unfortunate situation today is you basically need some kind of separate speaker(s) with a TV because the manufacturers all have cheaped out across the board and don’t include anything good enough any more. The consumer shouldn’t be expected to know this and have to pay extra, the TV should come with speakers capable of producing audio properly.