It is nonsense to think that an experimental developer tool made by a company with an interest actively against Linux adoption should be easier or more stable than a standard desktop OS installation. People recommend live usbs for transitioning for this reason. Something you would know if you had done even a cursory web search, something which normal people are actually capable of, despite your contempt for them.
Firstly, pasteurisation is most definitely a process.
Secondly, it’s very unlikely you are buying milk which has only been pasteurised, it has very likely at least also been homogenised, after being mixed from various different sources in order to produce a mill standardised fat & milk solids. The vast majority of the time rather than just being blended, it has been centrifugally separated into fractions that are then recombined in order to create a standard product.
None of this is really bad, btw, but it is 100% processing.