I'm not from there, it seems. The best you can do here is build your own PC, or go with a distributor (typically Dell/Lenovo) whose configuration allows opting-out of buying an OS. Needless to say that it's not a mainstream purchasing behaviour.
> MSFT have spent a lot of time, effort and dev years ensuring that their customers can run their software without breakage and downtime.
That wasn't my point at all. It was to stress how the ludicrous track-record of Microsoft anticompetitive practices, establishing and sustaining a decades-long monopoly, barred non-expert and non-enthusiasts from experiencing (possibly favourable) alternatives.