The Apple M4 is rumored to be ARMv9, even featuring SME on top of SVE2:
https://wccftech.com/apple-m4-adopts-armv9-run-complex-workl...
If true, I'd much rather buy an M4 and use Asashi linux (once it supports the M4) than Oryon, but I enjoy low level coding. Being NEON-only doesn't really bring anything new or interesting to the table from that perspective.