At this point the G subset is just a historical notation shorthand, not really a target. The new thing is RISC-V Architecture Profiles like RVA23, which comes

At this point the G subset is just a historical notation shorthand, not really a target. The new thing is RISC-V Architecture Profiles like RVA23, which comes with the base C extension plus extra compressed instructions specifically intended to reduce code size (Zcb), bitmanip instructions, the V vector extension now being mandatory, etc etc. This is what big application cores are expected to target in the future, so if successful you could expect Linux distros to start taking advantage of those at some point