Magento 2 permits running multi-stores which is an incredible component when you need to extend your business, set up stores for more than one area, or deal with numerous stores from single administrator board.
Nonetheless, that isn't true for every business. Also, around then, the degree marker for every design is superfluous. It might bother the administrator of the store.
You can dispose of it as it isn't helpful to you or may not work in that frame of mind for your single Magento 2 store.
Thus, what you can do is enable single store mode Magento 2. This will switch off all store view choices and extension markers.
Afterward, in the event that you add more store sees, the single store mode will be superseded.
For more info, visit : https://meetanshi.com/blog/enable-magento-2-single-store-mode/