As you already know, I can't. I've used Libre and OnlyOffice for personal stuff and they're able to get the job done. Few details that are different but for what's worth I'll even say that for some tasks both of them even have easier workflows than MS Office. They kinda remind of the Office 2003 days when MS Office had the UI actualize optimized for speed and productivity not to flash around. Unfortunately for work I can't just do it.