We have switched to Elixir and Phoenix as our go to stack gradually over the last 5 years. We've found that LiveView in particular, with it's ability to avoid a separate front-end framework altogether, has let us deliver applications to clients in a significantly more productive way. We were a rails shop back in the day, and were able to build things very quickly. When the whole front-end framework thing got big, it slowed us down a lot because we were building two applications, essentially. Now that we are able to go fast again we (and our clients) are enjoying things a lot more.

I should also say that if you do need to use a separate front-end for whatever reason, I've built a thing called LiveState: https://github.com/launchscout/live_state that lets you keep things far simpler and gives a "LiveView like" experience.