I spent time trying to learn the 'right' way to take notes and eventually decided to make use of what works for me. I use MOCs (Maps of Content) and folders a lot. I have a HOME note that is my master MOC. Every note has a link back to HOME and to the MOC the next level up. I set them up using:

TOP::HOME (link used)
UP::Next Level

Then if there are other notes I want to cross-reference I'll use:

SEE::note to look at.

That gives me a relevant directory of sorts at the top of every note.

In the notes I will use hashtags on general topics like #biznotes #notetaking so I can then easily search out topics of focused interest for me.

Recently I found GPT4All which gives me an AI chatbot on my desktop that can be used without a connection to the next thus keeping my data private. It will read Obsidian vaults. I can tell AI to check my collection for whatever query I want and it will come back with a summary list of references I can look at or I can just ask it to summarize the information.

Unfortunately, they did an update of the software and it's triggered a fault that wont run on some machines, one being mine. I hope they are working on resolving the problem.