What are the steps (ALL the steps) to install TWRP + /e/ or Lineage + Magisk + MicroG on FP3+?

[HolosericaCaligo]

Hey
I wrote a guide some months ago:

FP3/FP3+: Complete guide for installing LineageOS

This post is a #wiki, you can edit it by clicking the green pencil icon. Wiki meta discussion here How to: Installing LineageOS on your FP3/FP3+ Since there is no easy, complete, all-in-one guide available, I thought about writing one. Feel free to join this wiki post and optimize it;) 1. ATTENTION WARNING: You’ll loose all your data. So back up everything you want to keep! WARNING: the wiki hasnt been updated since some time and things might have been changed,…

AFAIK, for the FP3 there’s /e/, LineageOS and LineageOS for microG available (I installed LOS4microG on my FP3).

But if you choose this version too, be aware to install the newest FairphoneOS first. There were some firmware updates which aren’t delivered with LOS4microG (though with the original LOS)