Well, I basically never use "office" tools so for me, none of those things are necessary.
LibreOffice is not a converged application, so it would not be ideal for such work. Web office tools such as Google Docs/Sheets/etc… should all work well in the browser though.
If LibreOffice is a requirement for you and there are some problems, please report specific issues for the different problems, in GitHub. Libertine is an experimental feature to enable the use of legacy applications. It is not feature complete or 100% stable.
Native converged apps will always give a better experience than legacy apps. If things are "missing" to be a "complete office workstation" then the best thing to do would be to work on writing properly converged native applications to fill those gaps.