To add on to your statement that the BEAM is vastly underrated, it's the only runtime that I know of that has enabled multiple small sub 50 people teams to scale to millions of daily active users.

One of the early investors worked for Ericsson on Erlang.

Klarna was one of the biggest Erlang shops in 2010s. Then there was some turmoil, but their main system is still in Erlang

I'm interested to see how this goes, I find it difficult to convince anyone to change from the herp-derp status quo.