> Remember there has been a tremendous amount of effort made to make VM's like the JVM ... performant on ARM for mobile.

This doesn't reflect what I'm seeing at all - in fact I'm seeing basic ARM intrinsics still being added to the Graal compiler in the last few weeks!

https://github.com/oracle/graal/pull/2588

> You really can just drop you jar on an ARM (m6g), AMD (m5a) or Intel (m5, m5n) expect the same results.

Not without these kind of basic intrinsics you won't!