They’re keeping the layout and “adding more storage”, even though you can easily buy a 1TB SD card for your current Switch. So, in all honesty, it’s just a Switch with a bigger screen. At least on a Steam Deck you can play an order of magnitude more games on it, with -much- better variety.
vivanewvegas.moddinglinked.comViva New Vegas is a community curated list of mods providing a near-Vanilla, yet expanded and bug-free gameplay. There aren’t any more recommended mods than what is on the list, anything beyond would be for your preference. It is SUPER important to follow the directions with scrutiny, mega mod lists are very fragile and finicky during the installation process.
Now, if you’re feeling particularly insane, you can actually splice Fallout 3 and Fallout: NV into what is known as The Tale of Two Wastelands. This essentially provides FNV’s updated game engine and modding support for FO3. Good luck: taleoftwowastelands.com/viewforum.php@f=51