images and everything else bc client-side rendering... not sure how this is an argument for not lazy-loading images though
Because images won’t even start loading until JavaScript fully downloads and executes versus loading in parallel with other activities in the page.
As an end user it feels slow. If I hold my space bar on a website created in 1995, I can scan the entire page contents.
What you are talking about is more like graceful degradation. If server side rendering is used you will be able to see content ASAP, but not able to scroll, because interaction is blocked by JS. But if you will visit page with JS disabled you will get what you want, because component generates img in noscript tag and you will be able press space to scan the page
Actually pages that use a component like the one in this submission typically show a blurry "beer goggle" version of the image, waiting for JS to replace them with a hi-res version. So with no JS you get a page of beer goggle images (BBC does this for instance).