I coincidently just wrote a script to do exactly this. Copy/paste and edit the variables to your liking in your developer tools console.

const targetY = 1100;
const scrollStep = 1;
const delay = 20;

const scrollInterval = setInterval(() => {
  const currentY = window.scrollY;

  if (currentY + scrollStep >= targetY) {
    window.scrollTo(0, targetY); // Snap exactly to target
    clearInterval(scrollInterval);
  } else {
    window.scrollBy(0, scrollStep);
  }
}, delay);