it's never the best or most modern cutting edge one wins, it will be a long while to replace react I'm afraid.

but, React seems putting all the efforts to make it a server side rendering framework, which is not it was originally designed for, i.e. the SPA. Mixing SPA and SSR makes react even more complex, and may lead to its failure over time.

For me I want to leaner SPA only framework down the road, still searching. If I need SSR and SEO, I will use Django or Rails or PHP, they're designed for that decades ago and they're still alive and running strong.

New shiny things are on the market, so dump the good old tool that works. Typical junior mindset.