There are two games which can be run on Nintendo Switch 2 to execute the system jailbrake and as previously reported they are SmileBASIC and Civilization VII. Today, you can only run those games if you update to the latest Nintendo Switch 2 firmware which in turn breaks the jailbreaking element of those games. If your Nintendo Switch 2 is not updated, but connected to the internet, you will no longer have access to these games. Nintendo is clearly doing all it can to stop the system from being exploited, though with a small portion of users determined to open up the system it has a long battle on its hands.
Nintendo requires latest system update to be installed before SmileBASIC and Civilization VII can be launched

I think it’s interesting how SmilesBasic4 was a programming game, like that makes sense why it hacked the switch 2. But Civilization 7 is just kind of funny to hear, because it’s an actual game and not a programming software.
By definition, a game remains software, so well… it remains to be seen what CIV VII will do on the Switch 2 for that indeed… But this system already existed in the past, for example, the very first versions of PlayStation allowed playing imported games without owning anything else than an original game.. Sony removed this possibility in the 7000 and especially 9000 versions of the PlayStation.