The scope of Web Applications (WA) is about the use of web applications. Nowadays Google has several web applications that are very popular like Google (the web search service), Gmail, Youtube, etc. On WA many of the top 20 tags are related to Goole web applications and there are so many tags that using [google*] doesn't retrive all the tags1.
Will this site allow the questions related how to use applications like Gmail, Google Sheets, Youtube, etc?
A popular tag is about Google Apps Script that overlaps with Stack Oveflow (SO). The difference is that WA doesn't have the requirements as Stack Overflow, so some users that are not immersed on the developers culture could find WA less intimiting that SO.
Will this site allow question about how to write a script or more generally how to extend a web application like Google Sheets?