Recently, IONOS and Nextcloud announced their new, sovereign office suite called “Euro-Office” and claimed they were using components of ONLYOFFICE. It seems they are doing so without checking the licences first and without cooperating with them.

Original announcement:

Nextcloud and Ionos are promising a modern, open-source office suite for the summer. To achieve this goal, they have forked OnlyOffice.

heise.de

ONLYOFFICE reply:

Based on publicly available information, the “Euro-Office” project uses technology derived from ONLYOFFICE editors in violation of our licensing terms and of international intellectual property law.

onlyoffice.com

other discussions
 

To build an independent office suite, Euro‑Office’s IT consortium opted to base it on the existing open‑source solution OnlyOffice, which is released under the AGPL‑v3