Another considerable difference is that almost every 3rd party company writing s/w for macs was writing also for Intel anyway.
That was half decade or more ago. Now. almost every 3rd party macOS software company today is also developing for iOS or Android apps (growing multi-billion dollar businesses), which run on ARM processors. Most current macOS apps are developed using Xcode or LLVM, which can easily target ether x86-64 or arm64 ISAs. So it's only a small percentage of potential MacBook buyers who require running ancient legacy PC applications only available as x86 code.