Im searching for a FOSS office suite for android that is not cloud based and that lets me both view, create, and edit documents so far the only thing that i found that meets all those requirements is collabora, BUT IS TRASH!, i literally cannot even scroll down without it glitching out and sending me to a whole different part of the document!
I started switching over to plaintext files with Markdown a few years ago. It’s been great for interoperability. I don’t need to use a heavy program on my desktop or phone. I can view, edit, whatever I need as long as I have terminal access.