The final trailer music/soundtrack used in the She-Hulk series by Marvel has similarities to the music/soundtrack used in the final trailer of Sonic the Hedgehog movie. However, it cannot be concluded that Marvel copied Sonic's final trailer music/soundtrack in She-Hulk without further evidence.
It is not uncommon for filmmakers and TV producers to use similar music/soundtrack in their projects. Many popular music/soundtracks are reused in multiple films and TV shows, and it is not always due to plagiarism. Additionally, the final trailer music/soundtrack used in She-Hulk and Sonic the Hedgehog could be inspired by a similar theme or genre of music, rather than being a direct copy.
Without concrete evidence or statements from the production teams of both projects, it is difficult to determine if Marvel copied Sonic's final trailer music/soundtrack in She-Hulk. Therefore, any claims of plagiarism should be backed up by reliable sources and evidence before being presented as fact.
In conclusion, while there may be similarities between the final trailer music/soundtrack used in She-Hulk and Sonic the Hedgehog, it cannot be determined if Marvel copied Sonic's final trailer music/soundtrack without further evidence. As such, any claims of plagiarism should be made with caution and supported by reliable sources.