Personally, it is better to play games on the PC since most of them are suited for the PC. However, a PC would need state-of-the-art hardware in order to play some graphically demanding video games. The Steam Deck, however, ranges from $399.00 to $649.00, so it is a good alternative to playing most PC games that would otherwise require expensive components for a PC.
Moreover, the Steam Deck's hardware capabilities are quite decent. The CPU has a speed of 2.4-3.5GHz, 16 GB of RAM, and storage that ranges from 64 GB to 1 TB, which is decent enough to play popular titles on it.
In summary, Steam Deck is a very good alternative to spending thousands of dollars on PC hardware for some avid players. Its bonus feature is its portability, making it easy to bring with it on the go.