There's a huge gap for LaTeX to fill, or to potentially fill, but it's not happening. The other day I saw it described as "a neckbeard knitting circle, not viable software". As a LaTeX "fan", that hurt but it's the truth.
Over the past months, I had to collaborate with various different people across various different organizations. Everything in MS Word. I don't even hate MS Word, it's useful and its dominant position isn't entirely undeserved. But holy cow was working together a gigantic pain in the behind. I really started to loathe it (Excel is far worse and did its part too).
This was all with technical people. They could potentially grasp WYSIWYM approaches like LaTeX. Slap git and CI/CD on top and you're where software developers have been 10 years ago. But my industry is still light years away.
Part of it is how Word "just works". But it takes 5 seconds of using it until it doesn't. If LaTeX was more modern and also approachable (very ugly syntax/language. Could learn from Markdown here), technical folk could ditch Word and really upgrade their workflows. I'm sick of Word templates from 2004.