I watched Nomadland today during dinner time.

during dinner sounds more natural

Although the ending is the lead finally went back home and went on the road again, it was still too abrupt for me.

> Although the ending is the lead finally went back home
I don't quite understand what you're trying to say here.

But about the wandering theme works, my favorite is the game called Life Is Strange 2.

> But about the wandering them works
Not quite sure what you mean here again.

The theme of this game is also about education.

The theme is - a noun, no need to add about.
Or, "This game is about education".
But not both.

The goal of the game is for brothers to cross the from the United States to Mexico.

I couldn't accept the failure to escape or the separation of my brothers at first at all, because I felt that was very, very important to me.

Grammatically correct but just stylistically I'd split it up into two sentences, it's quite long and hard to read.

Through their journey, aAt the end of the game, I refinally put theended my obsession down.

I think this is what you were trying to say? Correct me if I'm wrong.

One is when the brother's mother chose to lose touch with her family completely because she felt tied down by marriage, evenin order to pursue the life she wanted.

Another is when brothers failed to cross the border, and after being caught in detention, met thea couple fleeing from Mexico to the United States, t. The couple said Mexicothat although Mexico had all kinds of bad butthings they still wanted to stay there, but in order to have a better life for their unborn child in, the fetus,y had to escape.

Split into two sentences because the one is really too long.
Also, we don't use the word 'fetus' very commonly in written or spoken language unless it is academic or scientific. Instead, it is better to use "unborn child"

This game has multiple endings, in my ending is, the older brother went to Mexico, and the little brother stayed in the United States at his grandparent's home.