I have OnePlus 7 Pro that I successfully flashed with LineageOS 21 with MicroG. Do you have some interesting apps or ideas to take advantage of it? I thought of some Magisk modules. Maybe someone is more experience than me! This is the spare smartphone, the main one is GrapheneOS, so I don’t mind breaking stuff.
I’m pretty sure Shelter is better than Island, but I forgot the reason xD
Obtainium to grab apps and updates straight from the repositories.
GPS Logger is neat if you want to keep track of your movements now that Google won’t track you anymore.
Insular (the degoogled open source version of Island) has a page comparing Island, Shelter and Insular
https://secure-system.gitlab.io/Insular/faq.html
I don’t know if its updated, but you can pick the ones that fits your needs.
I picked Island because I thought I may have issues with my notifications if I had chosen Insular. (Plus, there was this bug I was talking about and thought that it would fix it. Installing Island wasnt the solution, but I had already spent a lot of time/days setting up my phone multiple times and didnt want to try it again, with the possibility of problematic notifications.)