Comment by NitpickLawyer

> What we, the humanity, need, is a free-as-in-freedom open source set of web applications that work like Google Docs / Spreadsheets / Slides, but can be self-hosted and would natively use OpenDocument file format.

There's an effort called numerique, out of fr and de governments. It seems to have docs, spreadsheet and meet now, and more on the way.

https://lasuite.numerique.gouv.fr/en