Re: Wishful thinking
At the Embedded World conference last year, Calista Redmond, CEO of RISC-V International, announced that the number of cores in the RISC-V market had exceeded 10 billion: https://pocketmags.com/linux-format-magazine/october-2022/articles/1196448/risc-v-hits-milestone
I can't give an accurate or comprehensive breakdown, but I"d suggest that that's a conservative estimate, since compnies don't need to disclose that they're using the ISA at all.
Famously, Nvidia said in 2017 that they had designed RISC-V microcontrollers:
Western Digital too:
Qualcomm were incorporating RISC-V controllers from 2019. At the end of last year, they announced that they had shipped 650million.
Samsung started using RISC-V in 2020, but I haven't seen any figures there.