

Continuity. Nothing ever matters with comics. Superman was a communist, a nazi, a zombie, a literal god and everything inbetween. But most commonly, he is about the same he was 50 years ago. Meanwhile I’ve been growing up alongside famous manga characters. I could be following Naruto to this day and he’d be roughly my age at most points.
Variety. I’m not into comics, I admit, but almost every popular comic I’ve seen is about some kind of superhero. Manga on the other hand have a wide range of topics and target audiences.
Accessibility. I can read a lot of manga right now. Offical, free and online (at least the most recent chapters). There’s no such thing for comics. And while we’re at it: Manga release at smaller chunks in shorter time intervals, which keeps more attention. Being black and white does help, I’d assume.
Anime. They are mass produced and serve to promote manga. There is no equivalent with comics and extended media like cartoons or movies and such often follow their own storyline. Assuming I’d be into the MCU, there is no single comic I could read to see exactly what’s next. If I watch a season of Jujutsu Kaisen, I can look up the correct chapter and continue the story seamlessly.
Everything from 3 times a day to once every 3 days is normal. It depends on how much you eat, how much of it your body can absorb, your fiber intake and some genetic variance too.
Your intestines aren’t a conveyor belt, things don’t constantly move. There are multiple muscles acting as a valve between different sections. Based on the factors above your body decides when to push stuff to the next section including the exit.