Sometimes there is a movie and it's just a bummer.
It's showing a situation which is a bummer and that's exactly what it wants to do. There is no tacked on happy ending or gratuitous action. It's just a close-up look at an honest-to-god bummer.
There can be genuine insight. Sometimes the characters will have interesting, moving things to say about their situation.
The cinematic values may be very high. And of course there can be very good actors portraying the bummer remarkably well, making you feel quite bad about it all.
The question is: is that a good movie? For me, the answer is no.
But if that sounds appealing to anyone: Nomadland.