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 internally" - most places won't touch it with a 10m pole, by policy.