Tools like Skiff[https://www.skiff.org/ https://www.skiff.org/] are on the path of being that "alternative" which is, quoting from their website "..a privacy-fi

Tools like Skiff[https://www.skiff.org/ https://www.skiff.org/] are on the path of being that "alternative" which is, quoting from their website "..a privacy-first collaboration platform with expiring links, secure workspaces, and password protection."