

Nearly all jurisdictions have DMCA like laws which clearly say that circumventing copy protection is against the law. So in those jurisdictions it is piracy to use a backup of a copy protected game and I am very sure that a map of the countries where the Switch 2 can be officially bought and a map with countries who have thoses laws will produce a lot of matches. Maybe I am wrong, but I highly doubt it.
This is correct, as long as the copy was produced lawfully, which is only possible if no copy protection was circumvented.
Section 103 (17 U.S.C Sec. 1201(a)(1)) of the DMCA states: No person shall circumvent a technological measure that effectively controls access to a work protected under this title.
This law was created to limit the rights from 17 USC 117, and yes exceptions to section 103 exist, but those are very specific and some of them even exclude games specifically from the exceptions.
But I am no lawyer, and as a European I only have a very limited view and knowledge of US laws, so yes it is only my understanding of those laws and I could be wrong, so don’t take my words as a legal advice or anything like that. I am only a normal human with some experience with laws and jurisdictions, but far away from a specialist.