Is Terrible Lizards on Switch or Switch 2?

There is no Terrible Lizards edition for Nintendo Switch, and there is no Switch 2 edition you can buy. The machines that have the game are Windows on Steam, PlayStation 5, and Xbox Series X|S. If a page tells you Switch 2 is already out, that page is ahead of the studio.

What the studio actually wrote

In the launch post, WDR Studios says the game is on PC, Xbox Series X|S, and PS5, and then: they are also hopeful about a Switch 2 version in the future, and that it will depend on how the game performs. I am keeping both halves. "No build today" and "they want one later" are not enemies. Writing "never" would add a word they did not use.

A third-party wiki has used "Switch 2" in a headline while the body admits there is no current version. Headlines travel faster than bodies. This page exists so the headline and the body say the same thing.

What you can do on a Nintendo console

Nothing listed by the publisher. There is no cloud-stream SKU in the materials I used, and I will not guess at one. Steam Deck is a different question: Valve marks the Windows build Playable, and that note is on the Deck page. Deck is not a Switch.

If a Switch 2 listing appears later, the price page is where the new row goes, with the store name and the day I read it. Until then the row stays empty on purpose.