the CPU architecture is not as directly tied to the software as it once was

Yeah it used to be that emulating anything all would be slow as balls. These days, as long as you have a native browser you’re halfway there, then 90% of native software will emulate without the user noticing since it doesn’t need much power at all, and you just need to entice stuff that really needs power (Photoshop etc), half of which is already ARM-ready since it supports Macs.

The big wrench in switching to ARM will be games. Game developers are very stubborn, see how all games stopped working on Mac when Apple dropped 32-bit support, even though no Macs have been 32-bit for a decade.