Earlier quoted context omitted.
Businesses aren’t your friends. Employers aren’t your family. Be wary of either group selling them as such.
This isn’t untrue but it’s also an absolutist statement. There is a big difference between Canonical and Oracle, between Zappos (before Amazon bought them) and Walmart, between Starbucks and McDonalds. Your experience working for these will be vastly different. Your experience dealing with them will be also different. And some will behave closer to “good citizens” than others.
If there is anything that poses a risk to the company, interferes with an employees ability to serve the company, or in any way reduces productivity... there will be no difference between canonical and oracle or even canonical and McDonalds.
The difference between your experience working at these companies is largely window dressing on the same corporate employer/employee model.