Error happens on include library setup, for example verifying a blank sketch with only #include <Cpp_Standard_Library.h> or trying to verify Functional or ...
When compiling for UNO R4 WiFi, UNO R3, Nano, or Mega on my MacBook Pro M2, I get an "avr-g++: internal compiler error: Killed: 9 (program cc1plus)" error: FQBN ...