You aren't just getting one game; the includes:
Borderlands_Handsome_Collection_NSP_Base+Update+AllDLC
Borderlands: Game of the Year Edition [NSP] Region: USA / EUR / World Platform: Nintendo Switch File Format: NSP (Nintendo Submission Package) Size: ~XX GB (varies by version) Title ID: 010064800F66A000 (example – check actual) Includes: Base game + all DLC (The Zombie Island of Dr. Ned, Mad Moxxi’s Underdome Riot, The Secret Armory of General Knoxx, Claptrap’s New Robot Revolution) Required Firmware: 10.1.0 or higher Languages: English, French, German, Spanish, Italian, Japanese, etc.
The biggest concern for the Switch ports was whether the hardware could handle the cel-shaded chaos of Pandora.