Others have already responded to this but I wanted to bring in more information.
Let's look at the most popular games on the Steam Deck.
A lot of people are playing graphically demanding games on the Steam Deck. Elden Ring, Cyperpunk, and RDR2 are probably the most graphically demanding games on this list. How do people enjoy these games on a calculator? The Steam Deck plays at 800p which is significantly easier to run than 1080p or higher like we do with desktops.
Let's take a look at CP2077 performance settings and FPS people are getting on Steam Deck Hardware.
Proton.
ShareDeck. I see numerous reports that people are setting a frame limit of 40 fps and having a battery life over 2 hours. A fully loaded deck will have a battery life of 90 minutes meaning that at 40 fps the Deck has more to give. I see a handful of reports saying they are getting 60 fps with low visual settings and no hardware limits. I am a stickler for 120 fps plus on my desktop. I was surprised to find out that 40 fps on the Deck does not bother me.
Would you expect the Steam Deck to achieve 60 fps in Cyperpunk 2077? I know that comparing the Steam Deck to a calculator is intentional hyperbole. The Deck is far more capable than you might expect. The Asus ROG is a bit more performant with its faster hardware but suffers in battery life and software ecosystem. I am happy that we have such wonderful options for handheld gaming.