While LibreOffice has a ton of things that should be improved, I hope that it will never suffer a "modernization" that will make it more similar to the recent versions of MS Office.

In my opinion, MS Office has been improved steadily during the decade ending in 2003/2004, then it has stagnated, then it has been degraded continuously until today.

The UI of LibreOffice is ugly, but it is easy to do with it what you need. The UI of MS Office has become extremely convoluted for any of the more sophisticated tasks.