PlayStation (and Nintendo, XBox and most PC gaming) are all providing premium products to people they know will pay money. By contrast smartphone games are products for people who in general won’t pay much money up front, meaning that if you want to make a lot of money you need gatcha mechanics (which make games worse) and on unknown hardware.
With the higher expected game sales on the Playstation than Android and games that start selling at about $60 rather than about $3/game Playstation game studios can therefore spend many times more on development than Android studios and produce much deeper and more luxurious games. An Android game is trying to sell you a $5 experience whereas a Playstation game is trying to sell you a $50 experience. If you’ve enough time and not enough money the Android is the better buy, but if you have enough money many find it worth paying for the better experience because your time is, after all, limited.
This isn’t to say e.g. GenshinImpactis a bad game despite being developed for mobile, or that it’s not a lavishly developed one. But Gatcha mechanics are annoying and distracting and take up your time, thereby making the game worse and GenshinImpactison a very short list of free to play games that can hold its own on a PS4.