One of the other easy ways to overcome it is to provide as many templates as possible for journals. I’ve used LaTeX for years, but would by no means consider myself an expert in LaTeX, as I’ve almost exclusively been able to grab a template from a journal or from my university, and then just draft in the relevant blocks, write equations, add figures, and, rarely, add a package. I would guess that there are a huge amount of LaTeX users like me out there. I do all my drafting on Overleaf. I love TeX (and curse my PI whenever he requires that we use Word/365 instead of LaTeX/Overleaf)… but so much of the benefit, for me at least, comes from the fact that templates are readily available for any journal I would want to submit to; my masters thesis was built in a template provided by my university; etc. I don’t have to deal with any of the cognitive overhead of styling and formatting (except for flowing the occasional figure) and can just focus on drafting.
For me to even consider typst, it’s pretty much a requirement that there is some degree of template parity actively being worked on. The most natural way to approach that would be to just sort every journal by impact factor and start working top to bottom; given that so many journals share templates due to being within elsevier, springer etc, it should be straightforward to reach a reasonable degree of parity relatively quickly.
Getting the major publishers to support and offer their Typst templates would make me try it out immediately for what it’s worth.
Don't forget that many LaTeX packages exist solely because TeX and LaTeX suck and they are very underengineered save-the-day type of languages. They survived since everybody else asked money for their better typesetting systems. It is quite similar to how Unix and Unix-like systems survived despite the mountains of OS research and many new, more secure (usually paid) OS implementations.
One wonders why LaTeX has many users?Larger userbase can easily explained by being free. Students and PhDs usually don't have extra money to buy or nowadays rent Indesign but LaTeX is there for free. It doesn't mean it is technically superior or nice to use.
It does if one is doing typesetting math-heavy documents. Nothing really matches TeX quality or flexibility in math typesetting, not even typst (yet, at least).
But if there is no available template for the venues where I publish (in my case mostly conferences, although also some journals) it's not feasible for me to replace it. Maybe I could for slide presentations, posters or other documents that I design from scratch, but I'd say that's no more than 20% of the time I spend with LaTeX. The majority of the time I'm working with conference or journal templates.