Comment by sodapopcan

They probably just mean "BEAM language that isn't Erlang."

All BEAM languages always bring something new to the table aside from just syntax (for Gleam it's static type, for Elixir it's macros and, well, mix!) but none of them try and abstract away the core tenants of the BEAM being functional working with modules and processes. So ya, in that sense you could say it's like Elixir.