People usually dive into Elixir expecting Ruby, but it’s a very different language. Most of this confusion comes from not wanting to sit down and read a good book about it. The only thing it takes from Ruby is variable and namespace naming (since José Valim was a ruby syntax enthusiast). Ruby syntax is good IMHO, but that’s not the only reason to go for Elixir (far from it).

I recommend the book “Programming Elixir”. Even if you end up not picking the language, it makes a good point about how OOP is a natural enemy to concurrency (because of state) and about how transforming data (I.e functional) is a better match. The language runs atop the Erlang VM, which successfully navigated the troubles of concurrency in ISP nodes a long time ago.

Again, worth a read.