Best games on steam deck not available on PS5.

What are the best games on steam deck that are not available on PS5?

I’m looking to buy a steam deck, but don’t know if it will be worth it if I can just play the same games on a ps5 pro with better graphics, higher fidelity and on a bigger screen.

What are some games that are on steam deck but not available on the PS5 and run really well on the deck?

Edit: I see some of you suggesting the portability is the real appealing factor. However, having your whole library and trophy list in one ecosystem (i.e. PSN) is a big deterrent from leaving it. Therefore, I’m looking for good reasons to buy a steam deck which will inevitably lead me to also have to learn how to optimise settings to play games at their best on the deck.

I am also not looking for specific types of games. Just games that are good on deck that people enjoy that are not available on PSN as a matter of discussion.