No one will bother to make an ARM chip for "PCs" if there is no OS to run on it. MS won't fully port Windows to ARM with a Rosetta-like layer unless there is an ARM computer to run it.
Yes, Linux can run on anything, but it won't sell enough chips to make creating a whole new ARM computer line profitable.
MS has a full Windows for arm64 with a Rosetta-like layer already. It's been available for at least two years, although it only supported x86 at first (presumably because of the patents on x86-64). x86-64 was added recently (https://blogs.windows.com/windows-insider/2020/12/10/introdu...)
No one will bother to make an ARM chip for "PCs" if there is no OS to run on it. MS won't fully port Windows to ARM with a Rosetta-like layer unless there is an ARM computer to run it.
Yes, Linux can run on anything, but it won't sell enough chips to make creating a whole new ARM computer line profitable.