Nintendo officially states that "various issues have been addressed to improve the gameplay experience," though specific technical details were not disclosed.
This is almost certainly a pirated/cracked update file intended for use with custom firmware (e.g., Atmosphere) on a hacked Switch.
Files downloaded from unofficial sources (especially those in .rar format) may contain malware or "bricks" that can permanently damage your console.
: Without more context, the exact nature of these keywords cannot be determined. However, they likely relate to a guide, update, or discussion about Nintendo Switch packages (NSP) and their updates, possibly within a community or support context. The inclusivity implied by "everybody" might suggest a widely applicable guide or update.
The void was populated. Millions of translucent, ghostly figures stood in rows, stretching into infinity. They were the "everybody."
No legitimate guide will ever tell you to download “Everybody 1-2-Switch update 1.0.1” as a .rar file.
: Rated E for Everyone (Alcohol Reference, Mild Violence) .