The name is misleading you. It allows you to upgrade and doesn't require you to make any USB installation drive. It's much simpler than your suggestion.
Oh yeah. Sorry, I didn't actually read that properly. I was sure it said something about making a USB.
I will do that soon anyway so I've got recovery media.
@Fox started
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The name is misleading you. It allows you to upgrade and doesn't require you to make any USB installation drive. It's much simpler than your suggestion.