When on Linux, there is a decent chance that you will want to type mathematical symbols from LaTeX within plaintext situtaions. Are you in a lecture for Discrete Math? What about writing a simple README file for your project? No matter the situation, Linux is a slight disadvanage.

In windows, you have access to tools like AutoHotKey for live keyboard replacements or LaTeX symbols via a script available here: https://gist.github.com/kbauer/e8fee6514d124d5961f51fd7ba571bfd

On Linux, you can’t run AutoHotKey natively, which makes this solution a bit more difficult. Luckily, on many desktop managers, you have access to XCompose. This is a .XCompose file that contains a list of all the symbols you can type and binds them to various keybinds.

Simply download the file and place it in your HOME directory named .XCompose.

I will be using this website as a reference when making the LaTeX symbols table: https://latex.wikia.org/wiki/List_of_LaTeX_symbols#Greek_letters

To type any symbol, simply type <Compose> + <Latex Command> + <space>.