Warner Bros. spent hundreds of millions of dollars insulting the legacy of Michael Keaton's Batman across The Flash, Batgirl, and Aquaman and the Lost Kingdom. Although the DCEU ran into countless obstacles during its 10-year run, it achieved several admirable feats such as a large cast of talented actors, the rise in popularity of lesser known or oft-maligned characters like Peacemaker and Aquaman, and the positive reception of movies like Wonder Woman and Shazam!. Moreover, the DCEU pulled off another huge achievement before its inevitable reboot in the form of Michael Keaton's Batman return.

https://screenrant.com/michael-keaton-batman-return-dc-flash-aquaman-batgirl-wasted/