There’s no piracy as alternative in the list.

If you search about it you can lock your bootloader with LineageOS.

It’s debatable, there’s no perfect answer. As a dev I am always on arch and never tried once mint. Every opinions I read the last 5 years says that mint is solid and very friendly to windows users. I can live with such a recommendation in a cheat sheet for unaware people.

“CEO” is the company, we are still in a capitalist society. The board would also count but we can very safely assume they’re agreeing.