I swapped out the chipset fan on my Gigabyte X570 ITX board for a Noctua NF-A4x20 PWM. Noctua moves more air and is quieter. Has a little bit of a chunky sound compared to the stock fan which was more high pitched, but I prefer the Noctua and can rarely hear it even with my case right on my desk.
Do you have a photo that you could show us? If possible, I wouldn't mind seeing how it looks.