DBS Goku isn't much dumber than Z goku
Now, I know this might get people angry and stuff, but let me explain. Firstly, in DBZ buu saga, Goku quite litterally admitted that he did not want to defeat Fat Buu right then and there because he wants to bring it to the next generation. Also, you know what this led to, the entire human population getting killed and Earth getting blown up, including Goku and Vegeta's ENTIRE family to get wiped out. Another thing, Goku knew about the dangers of Majin Buu, yet didn't use ssj3 to fight Vegeta, which then led to Gohan nearly dying from Fat Buu sending a ki blast at him.Also, Goku in the Frieza Saga did let Frieza survive, So did DBS Goku. It doesn't even help that there is way less stakes in DBS which lets us show his normal personality, and people wanna try to bring up the counterargument of DBS goku getting Zeno to make another tournament and how it lead to Zeno erasing alot of universes. this makes zero sense because one, Zeno was gonna erase those universes anyway, two, Goku quite litterally saved those universes from getting erased instantly, and they atleast get a fighting chance. Also, sure Goku has his moments in Super where he makes the worst decisions possible like not killing Goku Black immediately, but then again you can also connect this to Android Saga where Goku didn't just go to Gero's Lab and destroy the androids. Also, the only reason why people glaze Z goku's character so much is because of the trash dub. If anyone can give counterarguments, I'm willing to hear it out