Yes, indeed. The Re:Zero manga exists and presents the story in a graphical format. It might have some differences from the original source, but it still captures the essence and excitement of the series.
The main distinctions lie in the storylines and settings. Touch manga often has a more heartwarming and gentle tone. Rock manga, as the name suggests, is likely to be filled with energetic and passionate moments related to rock music. Also, the character designs and plot developments can be quite distinct in both.
As of now, the Edens Zero manga is not finished. The story is still unfolding, and fans are eagerly awaiting the next installments. There's no definite end in sight for the moment.