Bits of it exist, not much about the CPUs yet - I get the impression they have something different from a normal RISC-V vector unit, and only on one of the two cores

https://documentation.espressif.com/esp32-s31_technical_refe...

OTOH it has a full MMU and will run linux

OTOOH it comes in a new WROOM package that's much harder to hand solder (not castelated so they can have lots more pins