Frankly I am shocked that they went with LibreOffice over OnlyOffice.

OnlyOffice supports online collaboration already, works online and offline, and has a much more familiar interface. Compatibility is also better with MS Office documents.

OnlyOffice is developed online-first but they provide an electron app that works fully offline on all OSes: https://www.onlyoffice.com/download-desktop.aspx?from=deskto...

Yep, an electron app is better than native LibreOffice. That's how low the bar is currently.