Here's one for Steam Deck fans, and everyone else also looking for some good deals, as Humble Store just recently put up a Games on the Go Sale. With their listed games targeting the Steam Deck with either a Verified or Playable rating.

Some good picks include:

Check out the sale if interested. It lasts for the next 3 days.

They also have a big sale on platformer / roguelike / metroidvania styled games too.

If you subscribe to Humble Choice, which I went over the details of the latest recently, you also get an extra discount depending on how long you've had it. There's some good picks in this month too like Death Stranding Director's Cut.