[johncolanduoni]

I’ve shipped almost pure HTML landing pages (Single kBs of total JS, none of it render blocking) in the last few years, and inline CSS and preload headers help a lot, especially for older devices. Expectations for image/video resolutions in particular have gone up since “the good old days”. You can really see the effect with much older devices, which become the majority once you look outside the US and EU.

IME most people trying to optimize their way out of tag manager, monolithic SPA hell don’t generally bother with these kind of features outside of turning on all the cloudflare rewriting and praying. If performance was important to them and they knew what they were doing, they’d fix those first.