Apple had a big part in aarch64 being what it is today so I am quite skeptical they'd just jump ship. I might be making this up (I can't remember the company)

Apple had a big part in aarch64 being what it is today so I am quite skeptical they'd just jump ship. I might be making this up (I can't remember the company) but I'm pretty sure at least one chip designer has moved from risc-v to arm. It's not clearcut.