Hi @jbmyob ! Welcome to the community and thanks for posting!
- We are planning on using GitHub as our authentication/authorization provider. I found this post, which suggests that GitHub assigns project access rights to users as per GitHub, is there any documentation that explains this?
You may want to read this section of the documentation
- Does SonarCloud support multi-organization GitHub installations (Cloud-based GitHub Enterprise)? We have a couple of organizations in GitHub that we’d like to integrate and ideally we’d like to be able to configure them in a single place.
SonarCloud does not support multi-organization GitHub installations.
- Does SonarCloud have the option of using our organization’s SSO, or is that only possible with our own SonarQube installations?
You are correct: you have to use one of the 4 providers (GitHub, GitLab, Bitbucket, Azure DevOps) to authenticate on SonarCloud; you can’t use your organization’s SSO.