There's a bit of shaming tone here, but we appreciate the call to action to include low-end devices and slow networks in our web design. Here's what we should be aiming to send over the wire per page in 2023 to reach interactivity in less than 5 seconds on first load: ~150KiB of HTML, CSS, images, and render-blocking font resources, and no more than ~300-350KiB of JavaScript. — The Performance Inequality Gap, 2023 - Infrequently Noted link 