For most usages, you don't need to write the code. Sometimes buff out rough edges for your specific application, but in my 12 years in academia, I think I've only really _written_ Latex twice.

There really isn't much code to write for a typical scientific document, just sectioning and math. You usually include the same preamble in your own documents and a preamble from the editor if you're targeting a scientific journal, but most of the time you focus on the content.

expanding on what others mentioned, usually each university has latex templates for their papers and reports which handle most of the complicated parts, the only real latex ive worked on for reports is for eqations and tables, and many people just use gui tools that generate the code for them.

New students do occasionally complain about images/figures not being where they are relative to the text in the code, thats a solvable problem in latex by embedding it in a minipage but honestly people complain about images having a mind of their own in word too ;)