LibreOffice is centered around the document foundation (TDF) in Berlin, correct?

Every month TDF should take a batch of X volunteer microsoft office users who have never used LibreOffice.

Their most senior developers should sit with them as they attempt to do their office work exclusively in LibreOffice.

Then take notes about their experience and revise/enhance the products accordingly.

They should do this 365 days a year for as long as it takes.

External perspective is the blocker. That's how you make it competitive.