Great article.
I apologize if somebody has already posted this info above (I couldn’t read the whole thread - too may posts 
):
If you’re working with a Samsung S10/S10e/S10+, at step 5, you’ll also need to add the vbmeta.tar file to the CP field (see this article: /How to/ install /e/ R on a samsung galaxy s10e already running android 12 - Using /e/OS / Setup - /e/ community)