The Black Clover anime is somewhat behind the manga. It's managed to bring many of the manga's exciting moments to the screen, but there's still a lot of material in the manga that hasn't been animated. This could be due to various factors like production schedules and story pacing decisions.
Well, the Black Clover anime has made good progress in adapting the manga, but there's still a way to go to catch up completely. Some key story arcs are faithfully presented, while others might have minor tweaks for the animation format.