Newbie question about making a listing and seo

Site URL: https://www.thecasualcottage.com/

when listing a product, when I scroll down to the Marketing section, it shows the website name and URL, but I don't understand this statement:

"This description will automatically be generated by search engines. Click edit below to provide an alternative description."

my question is....does this mean that search engines will only pick up site name and URL ?

do I need to edit and add text from my description?

TIA

Hi,

Can you take a screenshot? I just checked Marketing tab on my end, I Don't see that message