Complain all you want.

But I have clients who force the use of Sharepoint, and emails for team collaboration.

Coming over to a client with atlassian stack on premise or in the cloud, is like a peachy holiday in comparison. /anecdote.

/question At massive [project] scale; what would you rather recommend to use than Jira and Confluence for the project lifecycle, functional collaboration, technical collaboration, development, CI, and CD?