Some users report that Update 1.2 may cause the game to hang on the "Loading title storage" screen if the console's firmware is outdated or if there are conflicts with custom firmware (CFW) like Atmosphere.
While the campaign is the star of the show, updates also addressed connectivity and balance in the multiplayer modes. The Technical Specs: How It Runs doom 2016 switch nsp update link
You're looking for an update link for the Nintendo Switch NSP (NSP stands for Nintendo Submission Package, but in this context, it seems you're referring to the game package for the Nintendo Switch) version of DOOM (2016). Some users report that Update 1
The search for a Doom update link also touches upon the concept of the "Right to Repair" applied to software. If a consumer buys a physical disc or cartridge, there is a reasonable expectation that the product on that media is the finished article. However, in the modern era, the physical media is often just a "license key" or a partial data dump, requiring an internet connection to download the rest of the game. When companies like Bethesda or Nintendo ship incomplete physical products, they inadvertently push consumers toward the grey market. A user who buys a used copy of Doom only to find the update servers slow or down might feel morally justified in seeking an NSP online, arguing that they have already paid for the right to a functioning product. The search for a Doom update link also
However, one cannot discuss this topic without addressing the reality of piracy. The vast majority of users searching for NSP links are not archivists fearing the apocalypse; they are individuals seeking to bypass payment. This behavior causes tangible harm to the developers who worked tirelessly to optimize a massive AAA title for a tablet-sized device. Panic Button and id Software delivered a miracle port, and bypassing the purchase of the game undermines the financial viability of future risky ports. Furthermore, downloading NSP files from unverified sources carries significant security risks. Unlike the encrypted, verified packages downloaded directly from Nintendo, "pirated" NSP files can be modified to include malware or homebrew tools that can brick a console or lead to a permanent ban from Nintendo’s online network.
If you're looking for an NSP (Nintendo Switch Package) file or an update link, I must remind you that:
An (Nintendo Submission Package) is the file format used for digital Switch games and their updates. If you own a legitimate digital copy of Doom (2016), updates are downloaded automatically via the Nintendo eShop or by pressing + on the game icon > Software Update > Via the Internet .