Seasonality of weekly data: what period should be applied

Hi,

If I have weekly data, should I apply a custom seasonality like:

`
add_seasonality(m, name='yearly', period=365.25/7, fourier.order=5)
`

or use default parameter
`
Prophet(yearly_seasonality=True)
`

The reason I ask is that the default parameter has always a yearly period of 365.25 days

Thanks