Context: LaTeX is a typesetting system. When compiling a document, a lot of really in-depth debugging information is printed, which can be borderline incomprehensible to anyone but LaTeX experts. It can also be a visual hindrance when looking for important information like errors.
Your editor shoul show you \title as another colour
And subtitle would be \large after title line
It is all formatting rules. But eliminates formatting the body text.
At least you know output will be same, not like MS Word
Oh thank goodness, body text is notoriously the hardest thing to format in a document
If you had seen some of the Word documents I have, you would not joke about that. People can really f-up text bodies.
Example: one guy wanted to keep two paragraphs together. He did not know about the necessary formatting option, but he knew that chapter titles did what he wanted. So he made the first paragraph a title and just reset font, size, etc to resemble a normal text. F-ed up quite some things…
That’s just an effect of shitty software that does too much (and yes I’m advocating for a simpler Word or something. Markdown is fine for 95% of use cases.)