You sorta can. You can use WebView to embed a web browser in an app, or something like Cordova/PhoneGap/Tauri. The iOS web browser has been nerfed on purpose so that it can't really compete with apps, at least in the past. I don't know what the current state is.
Though it isn't quite optimal. If you want to make a game for Android/iOS/PC/Linux it's easier to get started with Godot (or Unity).