If you put those manga in your reading/have read list, you'll get notified when there's update
You have to add them to your "read" or "reading" list to get notifications about them. That's all.
By putting in a list, I don't mean make a list. just click on the reading/have read button when you're on a certain manga's page
create an account first then you can add manga to your list
My standard website for manga and manhwa is down so I’m using mangago to get my fill for the day. How do I see which of my bookmarked mangas/manhwas have updated? Do I have to go through them individually?