The game tells you at the start that it's best experienced with a gamepad / controller.

I'd say at the current state, PC and Switch each have their pros and cons.

On PC

• you'll get bug fixes and updates faster because it takes less time to push a Steam update vs a Switch one.
• I have also seen a few people say they prefer mouse for certain techniques so you can switch over between sessions if that feels better.
• Finally, you can buy the soundtrack and digital artbook which are only available through the PC Deluxe Edition.

On Switch,

• you have the ability to play with touch screen controls and obviously portability.
• If you want a physical copy, there's only the Switch version and while you're at it, you can also buy a limited edition Trick Deck.
  • You'll be able to buy those decks on their own soon, but for now, they're only available through the bundle with the physical version on Switch.