Wallabag is just what Pocket used to be – you feed it a link and it extracts text from the article for you to read later. I also use it to sync articles with my Kobo (the alternative interface KOReader has built-in support). Usually when I’ve read the articles, I just archive them in Wallabag without any further processing.
Logseq is for anything else – tips and tricks, the odd article I want to archive in its entirety to have it easily accessible, howtos, documentation of my personal projects, creative writing, journaling… It works a little like my own personal Wiki. I sync my pages among several devices using Syncthing.
AFAIK, you cannot add long notes in Wallabag, just tags. If I wanted to do that, I’d probably copy the text or link to Logseq and do it there.
I briefly worked under a project manager that would obviously forward all questions I had to ChatGPT and paste the answer. At that point, what the fuck are you there for…