[znwu]

I would say the current state of RISC-V is complete but still lacks the final kick. Yes, you can now build an application core out of it, given that V, B, K extensions are now ratified under RVA22. However most high-performance u-archs are not built for client applications -- they are usually built for server/professional market and then derive down to the client side. (Edit: or if not in the Apple and ARM case, curated computing also needs something beyond regular client applications)

For server/professional market, RISC-V still lacks a selling point. Perhaps something like a pointer masking, memory tagging, or transactional memory in the J and T extensions which are still in very early stages.