Arm had 40 years to be where it is today. RISC-V is 15 years old. Some more patience is warranted.
Assuming they will keep their word, later this year Tenstorrent is supposed to ship their RVA23-based server development platform[1]. They announced[2] it at the last year's NA RISC-V Summit. Let's see.
The ball is in the court of hardware vendors to cook some high-end silicon.
[1] https://tenstorrent.com/ip/risc-v-cpu
[2] https://static.sched.com/hosted_files/riscvsummit2025/e2/Unl...
Aarch64 is just 15 years old, and shares pretty much nothing with 32 bit arms apart from the name.
MIPS, which RISC-V is closely modeled after, is also roughly 4 decades old and was massively hyped in the early 90s as well.