What do you think of AndrOpenOffice?

Why isn't there a libreoffice version ???

There is some movement to make a "LibreOffice for Android", but there are a lot of work in that. Converting to Android means you must "strip down" a lot of functions OR it will be too large to run on all but the most powerful Android tablets.

It is not easy to do the "fork" to a new platform, like Android, Chrome OS, iPad OS, etc., etc.. You may need to rewrite a whole lot of things.

Then there is the on-screen keyboard, vs the attached keyboard. Most Android tablets are used with the on-screen keyboard. I tested a OOo/AOO for Android package on my Android tablet, but it would not work with the on-screen keyboard.