Every 3rd party character with their games they’ve brought to Switch.
Cloud (and the Final Fantasy series as a whole) is the only third party Smasher who hasn’t contributed anything to the Nintendo Switch library.
Although this isn’t to say that Square Enix hasn’t been supportive of Switch, they’ve given us Dragon Quest 11, Dragon Quest Builders, Dragon Quest Builders 2, Dragon Quest Heroes 1 & 2, Lost Sphear, I Am Setsuna, Project Octopath Traveler, The World End With You, and more.
But it’s still weird to see Cloud here as he’s looked more to as a Playstation character than a Nintendo one. Here’s hoping to see something with him on the Switch one day.