Each time the file changes, nextjs rebuilds the page which results in those logs. So if this is consistent with the number of times the file changes when you develops the page, it is fine

Two lines every time any file in your codebase changes. Could be due to autosave in your IDE too, not just you manually ctrl+s’ing. Then yes it’s normal.

If you don’t change any files but all of them still keep showing up then no it’s not normal.