Does cloud-based serverless computing compete with or complement Erland/Elixir? As a dotNetCore developer who writes a lot of Lambda and Azure function code I am trying to understand how OTP relates to these paradigms or if they are apples and oranges.

Erlang VM startup time is not great (in order of hundred milliseconds), but it has pretty unique features like hot bytecode patching in a running VM. So, naturally, Erlang shines when you need to build a system that runs for a long time, as opposed to short-lived lambdas.