Better (or simply more) ARM processors, no matter who makes them, are a win. They tend to be far more power-efficient, and with performance-per-watt improving each generation, pushing for wider ARM adoption is a practical step toward lowering overall energy consumption.
With the caveat that ARM isn't a industry standard like PC has become, thus while propritary OSes can thrive, FOSS has a much higher challenge other than OEM specific distros or downstream forks.
Stuff like this, https://www.amazon.de/-/en/Microsoft-Corporation/dp/15723171...
There are the Arm SystemReady and ServerReady requirements/specifications that enable generic board support by the OSes.
Thanks, I thought we were still on device trees and little else.
Practically speaking, very few systems actually support SystemReady. There's an experimental port of edk2 for the Raspberry Pi, but some hardware is unavailable when using it.