Is this how most people type on mobile these days, drawing lines all over a keyboard instead of tapping the individual keys? I’ve never had an iPhone so I don’t even know if they can do this natively, but I know you can switch keyboards at least, so it should still be an option if not.
You can only basically change the skin on an iphone keyboard. Downloading another keyboard still uses the apple keyboard under the hood. That’s why all Apple keyboards are such trash compared to Android.
Same with your browser. You can download a new browser, but it’s still Safari.