OP said he did not know any other "BEAM like environments", but AWS and GCP are "BEAM-like" systems in that they allow you to use distributed hardware computers to achieve scale and fault tolerance.
This sounds true on the surface and many people have argued that e.g. Kubernetes is "OTP but for distributed nodes" but I remain skeptical. The devil is always in the details and I haven't heard many people being very pleased with Kubernetes.
Admittedly Google's Cloud Run is very easy and nice to use though. And fairly cheap.
