I think it's kind of intentional, to show us the readers just how frantic his life is after getting isekai'd. This world is sh*tty, and he's got to deal with it.
Hmmm, maybe tbh the story I can think of that can be a shit world is a web novel called the wandering inn. Like you have good people even great people but also bad people that just want to see the world burn but all of them have a reason. They are greyer the anything else and a good guy can be a bad guy in other people's view.
Like the humans have a lord that is a great lord and loved and will move mountains to protect humans and his land but for the drakes, he is a warmonger that loves to fight and kill. We have a warlord that fights to take over the continent and takes slaves but he is loved by his people and the last time he came close the continent was more prosperous than ever. Or goblins that are not treated like civilized race and are hunted as monsters and it is so normal it is ingrained in them. Like they will laugh, eat and do all they can but it can be their last day on the planet but if they are cornered they will fight till the end because in the end, goblins die. No, one will help them because they are 'monsters".
In the end in short it is like the wandering inn says a couple of times through the story. Somedays are just shity and you just want to go to bed curl up and cry. Sometimes no matter what you do people die for no reason or in a blink of an eye. One day they are walking around, laughing, and talking and then they get killed by a stray monster of they took too much risk when dungeon diving.
I just feel like this world just doesn't have the good times. Like no friends, no good people it feels a bit off to me.