I’ve been getting sucked into this rabbit hole again lately as well. More in lighthouse than web vitals.
Seems like unused code is an issue we have no control over (apart from removing unused classes and interactions).
One thing I don’t get in lighthouse is when Google says to set specific explicit image widths when it look like they are to me. For example on luxury trains.
<img src="https://global-uploads.webflow.com/5d9db19620ac3a41c5269073/5f8943c0d3bcf7261c8527ee_early-bird-sale-home.jpg" alt="Early Bird Sale" sizes="100vw" srcset="https://global-uploads.webflow.com/5d9db19620ac3a41c5269073/5f8943c0d3bcf7261c8527ee_early-bird-sale-home-p-800.jpeg 800w, https://global-uploads.webflow.com/5d9db19620ac3a41c5269073/5f8943c0d3bcf7261c8527ee_early-bird-sale-home-p-1080.jpeg 1080w, https://global-uploads.webflow.com/5d9db19620ac3a41c5269073/5f8943c0d3bcf7261c8527ee_early-bird-sale-home.jpg 1600w" class="home-main-image">
Unused code on your site. Some in Webflow, but lots elsewhere…
Much to learn here