Similarly to how many other fantasy animes pander to teenagers, "The Unwanted Undead Adventurer" panders to doomers. There is a subtle feeling of melancholy to most of it.

The fantasy world is very generic. The material is in the personal struggles of the main hero.

The novel the anime is based on didn't expand much further what was shown here.

I recommend it to those who desperately want fantasy and dislike the isekai tropes.