All Might avoided Deku's question about Quirkless people becoming heroes by giving him One For All, but the manga may finally provide an answer.

Source: https://www.cbr.com/mha-quirkless-person-become-hero/

Deku's new dark appearance will be explained later this season, with the effects of the fight against Shigaraki clearly having a major influence on what the wielder of One For All is ready and willing to do to save lives.

Source: https://comicbook.com/anime/news/my-hero-academia-season-6-new-op-dark-deku-watch/

Deku's notebooks were heavily emphasized at the start of the series, but now they're mostly a gag.

Source: https://www.cbr.com/mha-deku-notebooks-running-character-gag-why-disappointing/

My Hero Academia might have brought Deku's tenure as a dark hero to an end, but the struggle for Hero Society continues.

Source: https://comicbook.com/anime/news/my-hero-academia-season-6-ochaco-big-moment-watch/