Is this interview real or fake?

[Eu sou Perfeito]

Spoiler:

What is 『Dragon Ball Super』, whose original creator is Akira Toriyama?

『Dragon Ball』 serialization ended in 1995. The following year, the animated series 『Dragon Ball Z』 also came to an end, but a sequel, 『Dragon Ball GT』, began airing shortly after.

In the 1990s, a film version was produced up to the 17th film. AkiraToriyama took the stance that the film versions and the original manga are different, so he had very little involvement with the films.

However, in 『Dragon Ball Z: God and God』, released in 2013, Akira Toriyama was deeply involved for the first time from the script stage. The battle finally entered the realm of the gods with the appearance of a character of great strength from another dimension, the God of Destruction Beerus, who surpassed Goku, who was supposed to have proclaimed himself the strongest in the universe after defeating Majin Buu.

[Hugo Boss]

Where you got that image from? It certainly would make investigation easier. My guess is that it comes from a Spanish wiki page.

Anyway, it seems a fairly decent description about how much Toriyama was involved in animated projects.

The highlighted part probably comes from episode #2 of Dragon Ball Super, when Vegeta goes on to reflect on how Goku became No. #1 after defeating Majin Boo (which is only implied in the movie).

[Saiya6Cit]

Let me make sure I understand the question.

Do you want to know if the highlighted part is true or fake?

Because that is not an interview, it is an article. Anyone can write that. They need to quote the source, otherwise it is just somebody's opinion.

Was Goku the strongest in the Universe? Hardly. I am not a DB expert but it is of my understanding that there is a character that looks like a pokemon or something which is named the strongest in DB Universe.