The article is in Brazilian Portuguese, you might want to translate it using external/browser tools. I also prepared a summary below.
TL;DR:
escondido
CW’s president of entertainment Brad Schwartz clarified that, despite how well “Superman & Lois” has performed, the decision to end the DC property came from Warner Bros. — “They don’t want a competing Superman product in the marketplace,” Schwartz said, referring to James Gunn’s 2025 movie “Superman: Legacy” in an interview to TheWrap
English:
https://www.cbr.com/superman-lois-canceled-real-reason/
https://tvline.com/news/superman-and-lois-cancellation-explained-superman-legacy-movie-1235170342/