Its a great intro to a more privacy focused ROM than stock android - I got one for a friend who’s never used any other custom ROM before and he loves it.

This video of optimising the layout of libreoffice should be helpful;

https://youtu.be/x44bda1dz84

Ive been meaning to flash this onto my fairphone but the websites instructions are a bit confusing (I’ve installed calyx, eos and graphene on other phones)