I did all my Quantum Field Theory homework in Latex, the professor required it. My classmates would write everything out by hand and then transcribe it, meanwhile my officemate and I could think/write/math in Latex, so we only had to write our homework once. The prof lifted the requirement halfway through the semester after everyone else complained, but I never looked back.

The only thing that prevented a 100% Latex-only semester was the goddam section where we had to draw Wick diagrams. There just wasn't a reliable way to draw them on my computer, as the Feynman diagram tools stuggled with the nuances of Wick diagrams. I still included the hand-drawn versions as figures in Latex, but it felt like cheating.

I did figure out how to write the Wick's theorem bracket notation in Latex though (not that I'll ever need to again), so that made up for it a bit. I wager that I spent more time researching obscure Latex packages than actually solving the problems that semester.

I love Latex so much, I even made a template for generating profesional looking DND item cards for my table that I submitted to overleaf: https://www.overleaf.com/latex/templates/d-and-d-item-card-template/ndfdspmmxnrn