Possibly theres to many moving parts? Windows still has a compatibility layer for decades old windows versions. Supports both 32 and 64 bit and for whatever reason drivers can still be hit or miss.
Their arm offering is basically unknown, but I think that’s in part because of they’re lack of pushing it. They almost never deprecate anything completely where ass Apple just axed 32bit applications and said tough it up build a 64bit one it’s one button
Apple also has a hardware advantage in that they only need to support a limited number of core hardware options. Saying that though I don’t think that would stop windows making a transition if they wanted to.
Windows probably should have killed 32bit, they probably should have killed legacy support. If they had it would force companies to update their software or die. Instead we still have software running for windows 2k requiring some specific old version of Java because they won’t drop legacy compatibility