FTC warns consumers of the dangers of downloading suspicious software with the promise of being able to play Nintendo Switch games. To avoid any of these scams they suggest avoiding anything that claims to be a Nintendo Switch emulator. Dont complete surveys in order to get unlock codes. Always have your antivirus software up to date to avoid malware and to play Nintendo Switch at a friends house until you are able to own a legitimate Nintendo Switch system for yourself. FTC encourages any suspicious activities regarding scams for Nintendo Switch emulators to be reported.
As it is now there are no emulators for the Nintendo Switch. Do a google search to check if what your downloading is legitimate and from a legitimate source.
https://www.consumer.ftc.gov/blog/theres-no-nintendo-switch-emulator