i have not talked about it in specific, I don't think! Probably because IMO, the process of "creating lore" is in itself not really a task -- you're writing plot outlines, or character backgrounds, or world histories or whatever, and those things are each expressed as a type of game asset (interactables, codex entries, dialogues, etc).
IMO, the best process is to have some sort of developer-facing documentation written in whatever sort of shorthand works best for you that details the broad details of your fictional world -- histories, timelines, character details, whatever you need to not fuck up the coherency of the world. Then that becomes expressed/expounded upon in the player-facing assets (the audiologs or character bios or w/e).
at my day job we use the term MVP a lot for "minimum viable product". The least you have to do to get the thing across. You probably don't need a super dense world history for you, the developer. You probably need just enough info to get your brain engine going. That material will come to life and get denser/deeper/more intimate as you express it into the assets that will come in the game itself -- conversations, interactables, etc.
so to put this into a workable example, when I'm working on Airborne Empire, I'm basically flitting between about three internal docs:
- The "Airborne Empire Loredoc" (it's literally named that) which is where I wrote the "thematic pitch" stuff as well as a sparse breakdown of overall game plot, some location/character details, some world history, etc. it's the closest thing we have to a "lore bible" I guess
- a big spreadsheet where we have character portraits and about a paragraph of info on each char (for both artists and myself to consult when remembering who characters are)
- a Text Stylization Guide that i wrote up so i can remember how to format dialogues & etc
as well as working directly in Unity for the actual dialogue writing, for which I'm usually consulting the previous documents for inspiration or notes.
IN SOME FORM OR ANOTHER this is how i prefer to work -- a couple docs Just For Me, and then all the rest of the labor goes into the stuff that people are actually going to read.
i hope that answers your question i realize that you might be looking for more conceptual advice than practical but i gave you the practical details lol