Yep, I also don’t fully agree on that one. I’m typing this on a degoogled Android phone with quite a bit stronger hardware than the iPhone SE that my workplace provides, e.g. octacore rather than hexacore, 8GB vs. 3GB RAM.
And yet, you guessed it, my Android phone feels quite a bit laggier. Scrolling on the screen has a noticeable delay. Typing on the touchscreen doesn’t feel great on the iPhone either, because the screen is tiny, but at least it doesn’t feel like I’m typing via SSH.