The main issue with Google Sites is there's a much higher level of friction for creating documents and then more importantly it's much more difficult to find th

The main issue with Google Sites is there's a much higher level of friction for creating documents and then more importantly it's much more difficult to find things (search is way better on Confluence). I can't speak as much on Wikis as a category but the ones I've seen at orgs are difficult to set up and manage. I have also found that non-technical people have more trouble using Wikis that Confluence.