Advantage and Disadvantages Between Naming Series & Series

I wanted to know what the exact difference between naming series and series that what’s the impact and which one is more preferable and why ?

Thanks In Advance

Could you elaborate what do you mean by “series” because naming series in erpnext is use to set doctype series.

I don’t think there are any advantage or disadvantage over one method versus another. Use a naming series that best suits your company. ERPNext internal series is good and simple for anyone to understand.

Along with naming series , series type is also there, in the last

Using naming series makes an additional field in database of that doctype with column naming series while series doesn’t. Just wanted to confirm that using series isn’t going to affect in any way (disadvantage) as compared to naming series