[enriquto]

> you can do the same on linux with the compose key. But it isn't very intuitive, discoverable or rememberable.

Well, LaTeX itself is not very discoverable either

[knolan]

It’s pretty good IMHO. Greek symbols are all obvious. \Omega and \omega for upper and lowercase omega etc. Super and subscripts with ^{} and _{} also work with \sum and \int for indices and intervals.

Software like Latexit and Mathpix also help a lot.