I tend to disagree. Server push was a cool way for implementing streaming like in hls particularly when you have constrained devices that otherwise would suffe

I tend to disagree. Server push was a cool way for implementing streaming like in hls particularly when you have constrained devices that otherwise would suffer from request latencies. However, IMHO the Internet has mostly degraded to a huge CDN. Http/2 is often not even handled by the final end point. Decentralized caching and proactive cache control has become a niche. Having said that, I still dream of a world in which browsers just care about rendering, rather than defacto shaping the future arch of the net on all layers (DoH, https cert policies, quic MTUs, ...)