Breaking down which protagonists in anime have less presence than supporting characters?

I think a few of them are protagonists who have less presence than the supporting characters in anime:

Shihara Tadakuni's "Daily Life of High School Boys"

The real hero of the book ends inexplicably midway through the story. If there's anything impressive, it's probably the opening scene where the women in costume and KY's statement that "potato chips are half price at the supermarket next door" ruin the mood for a second...obviously, it's a good early-stage comedic normalcy. It's not as picturesque as the other two, but is also considered a common joke. However, for no apparent reason, it never came online after saying it was time to go to sleep. However, fans also have a theory that maybe the whole story is just a dream of Zhongbang, so he gradually disappeared in the second half of the story.

Shimura Shinpachi's "Gintama"

These names are all called "Gintama". The protagonist is of course Seal Stone. However, it is clear that Simba is also one of the book's most important characters. In the omniscient room are the protagonist Yin, the anti-evil cutie Lori and the mascot Ding Chun. In addition to Gadgets, there are also characters like Hijikata, Sougo, Katsura, Takasugi, Kamui, etc., but they are very popular. In contrast, the new deliciousness seems to exist only in the spit-out food. Even the characters in the work reveal the fact that this ordinary 16-year-old boy is a "human-shaped spectacle frame", and the author Hideaki Sorachi also said that the new eight people are the facial prototypes of all characters, in a sense , it is also a name.

Yoshii Akihisa's "Idiot, Test, Summoned Beast"

According to the official background, the male protagonist in this work is considered to be a young man with a beautiful appearance, but this beauty has been Offset by the aura of idiot. He has the title of "observer and disciplinarian", a synonym for idiot, and his learning ability is completely poor. He could only rely on rote learning to improve his grades. However, on the other hand, his family skills are quite superb, especially his cooking skills which are of professional standard. But now when we mention "Idiot, Test, Summoned Beast", I am afraid that the male protagonist will not be the one that comes to mind, but the female protagonists Himeji Mizuki, Shimada Minami, and many people with the highest sense of presence. Kinoshita Hideyoshi, who is an enlightened figure in a certain way, "his gender is Hideyoshi"...

The protagonists of these three anime are protagonists who have no sense of existence compared to the supporting characters. The above is just a personal opinion.