Long term user of LaTeX. I did try Typst and it has is advantages main one it compiles faster. I am sticking with LaTeX and I don't find it difficult to use, write packages and classes, as I did invest the time to understand it and learn the language. Academic institutions, understand its superiority and also want to protect their archives. Maths has a long shelf-life. LaTeX also has a very good civilized community. LaTeX as it stands now has no comparative competitor.