You can render React server-side on first page load, though, and there will be no lag waiting for the page to render and initialize. I think that most people do

You can render React server-side on first page load, though, and there will be no lag waiting for the page to render and initialize. I think that most people don't do it because there is extra work involved, but IMO if you're a huge site like Reddit, there's no excuse for not doing so, it seems like laziness.