L.A. Noire Switch file size, physical version requires 14GB download
Rockstar’s support site provides new information about the storage requirements for the Switch version of L.A. Noire.
Assuming you’re going with the digital version, L.A. Noire is a 29GB download. This includes “all bug fixes and improvements”. Due to the high size, you’ll need a microSD card.
Even if you’re purchasing the physical version of L.A. Noire, you’ll still need to download extra data. The game will have a 14GB day-one download “containing required gameplay data as well as general bug fixes and improvements.” It can be installed on either Switch’s internal storage or a microSD card.
Rockstar does note that the microSD card needs to have a read speed of at least 60 MB/sec. This is regardless of the installation method used.