How far does the One Punch Man manga deviate from the anime?

The Chainsaw Man anime is a decent adaptation of the manga. It mostly follows the original storyline, with only occasional tweaks to make it more suitable for the anime format. These changes haven't caused any major deviations from the manga's essence.

The Chainsaw Man anime is relatively close to the manga. There are some minor differences, but the core plot and characters remain intact.

The One Piece anime mostly sticks to the manga, but there are some small differences here and there.

The One Piece anime mostly follows the manga storyline, but there are times when it adds filler episodes or makes minor adjustments for animation purposes. However, the core plot and character developments remain largely intact.

Not much. The manga and anime of One Piece mostly stay in sync, with only a few minor differences here and there.

The One Piece anime generally sticks close to the manga, but there are some minor differences here and there.

The One Piece anime generally follows the manga closely, but there are some minor differences.

Not much. The One Piece anime mostly sticks close to the manga in 2022, with just a few minor tweaks here and there.

The One Piece anime is generally quite close to the manga. There are a few differences here and there, like extended fight scenes or additional character backstories, but they don't stray too far from the original source.

Not much. The One Piece manga and anime are generally quite consistent, with only minor differences here and there.