Mostly (there are some projects to do Scala not on the JVM, but I have never seen them be more than a toy). That said, the JVM GC is the (IMO) best GC out ther

Mostly (there are some projects to do Scala not on the JVM, but I have never seen them be more than a toy). That said, the JVM GC is the (IMO) best GC out there, it is really good for many many situations. And then there are some paid JVMs if you want to trade latency guarantees.