My posts back then were a little out there, so I don’t blame you, ha!
This is from the help docs:
Basically you just add a | then the custom preview name you want displayed after the actual note you are linking to. Of course, all of this is within the context of using the [[ links.
I realize now that this tip about using pretty links wasn’t really relevant to what you were asking. I think I originally misunderstood what you were asking so that idea was in my head, then after linking to my old post I immediately transitioned into explain this tip without really thinking it through.
I refer to aliases wrongly in that post although aliases are somewhat relevant in a sense that many people would like the use of a certain pretty link for a note to automatically define an alias. Automatically insert aliases into frontmatter from newly created aliases Wow, I am making this all very confusing. https://help.obsidian.md/How+to/Add+aliases+to+note My bad. Aliases can be defined with the front matter of a note so that you can easily link to said note by typing that or any other defined alias name after the [[ and using the suggestions pop up.
I saw your other post asking about tips for learning. I assume you’ve been through the help vault. If not it is definitely worth a wander. 