One of the biggest injustices seen in Aquaman and the Lost Kingdom was how it continued to disrespect one of the DCEU's best characters, who was supposed to debut in the Synderverse's Justice League. Aquaman and the Lost Kingdom depicted Arthur Curry's reluctant return as the King of Atlantis and newfound purpose as a father. In it, he wrestles with the heavy new responsibilities that now rest on his shoulders following his immense character growth in Aquaman. This growth saw him embrace his Atlantean heritage and the noble motive to join the surface world and Atlantis together.

https://screenrant.com/aquaman-2-vulko-disrespect/