I recommend you un-discover it and take a look at the Collabora office suite. It's basically the LibreOffice engine with a web ui on top. We've been using both OnlyOffice and CODE for years, and CODE has much better performance (both the client and the server; probably because the backend is in C++ instead of Node), it's more stable over the long term, and has better compatibility with msoffice.

https://www.collaboraonline.com/code

https://hub.docker.com/r/collabora/code

(it's FOSS, the language about "home use" is there to scare large companies into buying commercial versions with support contracts.)

Onlyoffice have a lot better compatibility .