We used to believe that, but our bank told us that it isn’t true. We pay everything off each month, and the score consistently increases.
score has nothing to do with what lenders like to see.
would you loan me 500 a month if interest started on day 31 and I paid you back on day 30?
Probably not for long. you would not be making any money.
(except the small taste they get when you use the card. but that is a penny or 2 on the dollar)