I’m surprised ONLYOFFICE isn’t more popular in more distributions. It’s AGPL, open source, and almost infinitely more intuitive than LibreOffice to anyone coming from Microsoft Office.
There is some confusion here. The linked GitHub repo clearly says Apache License, but their commercial website does say AGPL. They're not even remotely similar. The AGPL is regarded as so toxic that nearly all companies where office suites matter, place it on a "do not use" list. It's a good way to artificially limit your potential customers. It doesn't matter that they have a page saying "sure go ahead and use it in…
Then it's no worse than any proprietary software; if they pay for a commercial license then it's fine. Of course, if they use it internally then AGPL is also fine.