sure thing! I'll try to make points related to what I observed and experienced in my org, starting with one huge huge huge preamble which is: I work in an average org with average joe devs. an average joe dev to me is someone who "just wants a job" and is not very interested in furthering its own professional development or learning new things unless trained & forced by the job. it's perfectly fine to be an average dev, I understand I'm sounding like a snub but the difference is real, exists, it's tangible as I touch it every day.
having said that, designing a proper elixir module (which basically is a bunch of functions that operates on a certain data structure usually represented by map of a certain shape) carries a certain level of fundamental understanding of the operation you're doing, which in my experience is one of the hardest things to get correctly.
It also requires a different way of exploring code as you can't do the familiar `.` and see what happens, you can't just do `price.toCentsValue` but need to do `price |> Price.toCentsValue` and so you need to know the existence of the `Price` module, which might not exist and be buried in `Cart` or as an helper in some controller because you did not understand clearly the domain and the modules responsibilities. Attaching behaviour to data is powerful, explorable, and most people are used to it, even if it's the wrong place in principle, with modules this is flipped, it's now data that must thread through operations, and it's not super easy to grasp.
Also, tooling is not that good (dialyzer sucks, intellij plugin not that good, vscode lsp good but still not a proper experience from people coming from c#/java, type annotations are not that readable...), pattern matching and destructuring on fn arguments confuses people and it's not super easy to read, and a million other papercuts related to tooling and syntax.
We don't have many elixir codebases (let's say around 15-25%) and I've seen incessant whining about "we don't want to maintain elixir" simply because the majority of people cannot be bothered to learn another mountain of quirks and papercuts (every lang has them) plus also losing the familiar way of working they already have, and having to remember that for the spot ticket that appears once in a blue moon on jira for elixir. That's why I think elixir needs extra support from the organization, basically in mandating it to be the primary language, teaching people proper design + proper code navigation and structure techniques, etc.
I hope I've been clear in my long winded ramblings; and I still wish a great future for elixir, so it becomes more approachable in average places like mine