This article explains how to view the word count in the Google Docs app and browser extension.
How to Determine Word Count in Google Docs
Checking the word count in Google Docs is easy. There are a few ways to do it.
In macOS, press Command+Shift+C. In Windows, press Ctrl+Shift+C to open the Word Count window containing the information.
You can also check the word count in Google Docs using the toolbar instead of a keyboard shortcut. To do this, select Word Count from the Tools menu.