That was the first thing I thought off when I saw the anime for the first time. They're have very similar designs for me,
First few books was very similar then they start to diverge (basically just the childhood arc), honesty was the biggest reason why i didn't like beggining after the end at first. However, now its due to the feeling of the mc losing his agency due to the superpowers in ths world.
No, they start off in a similar manner however their stories start to diverge into two completely different plots. Plus the goal of Jobless was for the MC to find his family however Beginning of the End is different, it’s connected to his past life for better or worse and the story eventually ends up becoming a little depressing because of the MC’s karma for what he’s done