It will be interesting to see if the Switch 2 ever gets a mod chip, because NVIDIA has a completely reengineered boot chain that should be impenetrable. Combine that with an OS that already is impenetrable (no useful exploits in half a decade), we might be waiting an Xbox One-level amount of time.
Most likely referring to CVE-2018-6242 aka "Fusée Gelée"
The paperclip was just the easiest way of triggering RCM, which is a standard feature on Tegra. The vulnerability lay in that they didn't bounds check certain types of USB requests properly.
https://gbatemp.net/threads/switch-2-data-gathering-for-poss...