Making good code, a lifestyle
Magento

Magento 2.x – Add new top link and remove existing one using xml

If you want to do some changes on the top links of your store, such as adding new ones, or removing default ones, you will need to have your own theme, and, regardless of that, it will depend if it inherits from Luma or Blank, as follows:

 

If you extended Luma Theme:

app/design/frontend/<vendor>/<theme>/Magento_Theme/layout/default.xml

 

If you extended Blank Theme:

app/design/frontend/<vendor>/<theme>/Magento_Theme/layout/default.xml