I don’t have an answer about tagging titles. Can you explain more about why you want tags in the titles? Is it for convenience, or readability, or maybe compatibility with another app you used?
For tagging vs. linking, I really think it is just personal preference.
There is no right way or wrong way. And that can feel intimidating. But I personally see it as an opportunity to start with a very light, casual structure, and improve it over time. You can always add links and tags and folders later. Obsidian can be very simple if you choose what features to focus on.
