A "patched" Nintendo Switch refers to a console where the original hardware vulnerability (RCM exploit) has been fixed by Nintendo
It was ugly, it was unreliable, but it was free —unlike the hardware modchips required for patched V2 and OLED Switches. youtube patched nintendo switch
Specifically, they patched the within the YouTube app. The exploit relied on being able to mark memory as executable. The patch made that impossible for user-level apps. A "patched" Nintendo Switch refers to a console