My opinions on page layouts have changed a lot over the years. Probably as much as my use of notebooks have changed.
I’m not going to cover anything beyond the very basics here:
Before I cared I used lined. Then I got into blank, and used that for a very long time.
I think there are some valid uses for all of the layouts. But for what I need there are two superiour layouts, one acceptable substittute and one useless.
If I’m going to write I’m using lined. And for notes I prefer dotgrid or blank if dot grid isn’t available. And I have no use for regular grids.