LaTeX is a typeset that is written in plain text with Markup language. Word, docs, acrobat are all WYSIWYG (what you see is what you get) editors, so you type the words and use toolbars to edit formatting. In markup, what you write is what you get: you type everything, including the commands for alignment, spacing, etc. It makes control and customization of your document easier. If you ever have tried to use MS Word to make a good looking equation and wanted to die when it messed up your images and spacing 10 pages back, markup typesetting is the solution.

My tip would be to find a few templates on overleaf that you might find useful and just mess around and try to come up with what you want to see. Could be for work documents, could be for a hobby, whatever. Overleaf, the website I shared this project on, is great because it handles the backend stuff like compiling, software installs, etc. and allows you to easily copy templates over from premade projects in the gallery.

I learned to use it for writing scientific publications, but eventually I used it for all my homework, making 'official' looking DnD content, keeping a log of my work; basically most documents that are longer than 1 page. It is particularly good for science and math writing, but is almost as versatile as HTML for whatever you want to make.