First of all, I love LibreOffice very much as the last bastion of sanity in classic document suites, and I love what Collabora is trying to do with the online piece. So, first, a million thanks. Truly.
Now, to put on the the "feedback is a gift" and "radical transparency" caps.
From the screenshot comparison in TFA: The new one looks all Microsoft-Ribbony. That's a huge step backward. The big strength of LibreOffice or Collabora Desktop Classic is that it has a sane UI/menubar visual paradigm. (Which MS obliterated eons ago.)
But let's talk about what matters: Collabora (the online document suite) is slow as heck.
It needs to be fast-updating for shared multi-user docs, like Google Docs/Sheets or Word/Excel 365.
That should be the top priority. Full stop.
LibreOffice works fine for desktop. But, for Collabora, the web experience needs to be fast. The lag in Collabora is simply unacceptable.
People expect online, and they expect collaborative, and they expect nearly instantaneous updates (at least not painful to type and wait for screen to update).
Talk about misplaced priorities. In my very humble opinion.