A review of "Nintendo Switch ROMs" isn't a review of a single product, but rather an evaluation of the used to play Switch games outside of their original hardware or to back up a personal library.
A ROM (Read-Only Memory) file is a digital copy of a game cartridge or disc. In the context of the Nintendo Switch, a ROM usually takes the form of an .XCI (a raw dump of a game cartridge) or an .NSP (Nintendo Submission Package, usually from the eShop). These files contain the game data, assets, and code necessary to play the game on hardware other than the original console—specifically, on a PC, Android device, or even a Steam Deck. Roms Nintendo Switch
To run these files, you need software or hardware that can "mimic" the original Switch console. 1. Software Emulation (PC and Android) digital ecosystem A review of "Nintendo Switch ROMs"