Apple M1(X) is a beast, but if it will be restricted to Mac OS then x86 is here to stay for a long time. There are a lot of cases where Mac OS is a no go and actual x86/x64 CPUs, thanks to competition, are quite good, maybe not as good as M1(X), but changing architecture nowadays requires a lot more reasons than years ago. Also, thanks to its integration you just can't upgrade M1 notebooks.