https://disroot.org
It looks pretty good, privacy side.
I make Noise.
Collabora Office is here, and it brings the power LibreOffice to Android & iOS https://www.omgubuntu.co.uk/2020/02/collabora-office-libreoffice-for-android-ios
Abandoned website full of good reviews about command line and cui applications.. Last article from 2015, but most are still valuable

How to delete a file named -some_fancy_name without the shell treat it as a command option?
"Unix haters handbook" says it's possible only from the parent folder:
rm child_folder/-some_fancy_name
Better try this way:
rm -- -some_fancy_name
The double minus marks the end of options.
"Your Unix/Linux" book does same error, advising to not name files starting with a minus sign. Sure is better not, but it's not so terrible...